TCS technical and aptitude questions

 

Latest Sample Placement Paper Of TCS 

TCSC Aptitude: Questions

1. The C language terminator is 
(a) semicolon (b) colon (c) period (d) exclamation mark 

2. What is false about the following -- A compound statement is 
(a) A set of simple statements (b) Demarcated on either side by curlybrackets 
(c) Can be used in place of simple statement (d) A C function is not a compound statement. 

3. What is true about the following C Functions 
(a) Need not return any value (b) Should always return an integer 
(c) Should always return a float (d) Should always return more than one value 

4. Main must be written as 
(a) The first function in the program (b) Second function in the program 
(c) Last function in the program (d) Any where in the program 

5. Which of the following about automatic variables within a function is correct ? 
(a) Its type must be declared before using the variable (b) They are local 
(c) They are not initialized to zero (d) They are global 


6. Write one statement equivalent to the following two statements: x=sqr(a);return(x); Choose from one of the alternatives 
(a) return(sqr(a)); (b) printf("sqr(a)"); 
(c) return(a*a*a); (d) printf("%d",sqr(a)); 

7. Which of the following about the C comments is incorrect ? 
(a) Comments can go over multiple lines 
(b) Comments can start any where in the line 
(c) A line can contain comments with out any language statements 
(d) Comments can occur within comments 

8. What is the value of y in the following code? 
x=7; 
y=0; 
if(x=6) y=7; 
else y=1; 
(a) 7 (b) 0 (c) 1 (d) 6 

9. Read the function conv() given below 
conv(int t) 
{ 
int u; 
u=5/9 * (t-32); 
return(u); 
} 
What is returned 
(a) 15 (b) 0 (c) 16.1 (d) 29 

10. Which of the following represents true statement either x is in the range of 10 and 50 or y is zero 
(a) x >= 10 && x <= 50 || y = = 0 (b) x<50 
(c) y!=10 && x>=50 (d) None of these 


11. Which of the following is not an infinite loop ? 
(a) while(1)\{ ....}(b) for(;;){...} 
(c) x=0; (d) # define TRUE 0 
do{ /*x unaltered within the loop*/ ... 
.....}while(x = = 0); while(TRUE){....} 

12. What does the following function print? 
func(int i) 
{ 
if(i%2)return 0; 
else return 1; 
} 
main() 
{ 
int =3; 
i=func(i); 


i=func(i); 
printf("%d",i); 
} 
(a) 3 (b) 1 (c) 0 (d) 2 

13. How does the C compiler interpret the following two statements 
p=p+x; 
q=q+y; 

(a) p= p+x; (b) p=p+xq=q+y; (c) p= p+xq; (d) p=p+x/q=q+y; 
q=q+y; q=q+y; 
For questions 14,15,16,17 use the following alternatives: 
a. int b. char c. string d. float 

14. '9' 

15. "1 e 02" 

16. 10e05 

17. 15 

18. Read the following code 
# define MAX 100 
# define MIN 100 
if(x>MAX) 
x=1; 
else if(xx=-1; 
x=50; 
if the initial value of x=200,what is the value after executing this code? 
(a) 200 (b) 1 (c) -1 (d) 50 

19. A memory of 20 bytes is allocated to a string declared as char *s then the following two
statements are executed: 
s="Entrance" 
l=strlen(s); 
what is the value of l ? 
(a)20 (b)8 (c)9 (d)21 

20. Given the piece of code 
int a[50]; 
int *pa; 
pa=a; 
To access the 6th element of the array which of the following is incorrect? 
(a) *(a+5) (b) a[5] (c) pa[5] (d) *(*pa + 5} 

21. Consider the following structure: 

struct num nam 
{ 
int no; 
char name[25]; 
} 
struct num nam n1[]={{12,"Fred"},{15,"Martin"},{8,"Peter"},{11,Nicholas"}}; 
..... 
..... 
printf("%d%d",n1[2],no,(*(n1 + 2),no) + 1); 
What does the above statement print? 
(a) 8,9 (b) 9,9 (c) 8,8 (d) 8, unpredictable value 

22. Identify the in correct expression 
(a)a=b=3=4; (b)a=b=c=d=0; (c)float a=int b= 3.5; (d)int a; floatb;a=b=3.5; 

23. Regarding the scope of the varibles;identify the incorrect statement: 
(a) automatic variables are automatically initialized to 0 (b) static variables are areautomatically initialized to 0 
(c) the address of a register variable is not accessible (d) static variables cannot be initialized with any expression 

24. cond 1?cond 2?cond 3?:exp 1:exp 2:exp 3:exp 4; is equivalent to which of the following? 
(a) if cond 1 
exp 1; 
else if cond 2 
exp 2; 
else if cond 3 
exp 3; 
else exp 4; 

(b) if cond 1 
if cond 2 
if cond 3 
exp 1; 
else exp 2; 
else exp 3; 
else exp 4; 

(c) if cond 1 && cond 2 && cond 3 
exp 1 |exp 2|exp 3|exp 4; 

(d) if cond 3 
exp 1; 
else if cond 2 exp 2; 
else if cond 3 exp 3; 
else exp 4; 

25. The operator for exponentiation is 
(a) ** (b) ^ (c) % (d) not available 

26. Which of the following is invalid 

(a) a+=b (b) a*=b (c) a>>=b (d) a**=b 

27. What is y value of the code if input x=10 
y=5; 
if (x==10) 
else if(x==9) 
else y=8; 
(a)9 (b)8 (c)6 (d)7 

28. What does the following code do? 
fn(int n, int p, int r) 
{ 
static int a=p; 
switch(n) 
{ 
case 4:a+=a*r; 
case 3:a+=a*r; 
case 2:a+=a*r; 
case 1:a+=a*r; 
} 
} 
(a) computes simple interest for one year (b) computes amount on compoundinterest for 1 to 4 years 
(c) computes simple interest for four year (d) computes compound interest for 1year 

29. 
a=0; 
while(a<5) 
printf("%d\n",a++); 
How many times does the loop occurs? 
(a) infinite (b)5 (c)4 (d)6 

30. How many times does the loop iterated ? 
for(i=0;i=10;i+=2) 
printf("Hi\n"); 
(a)10 (b) 2 (c) 5 (d) None of these 

31. What is incorrect among the following 
A recursive function 
(a) calls itself (b) is equivalent to a loop 
(c) has a termination condition (d) does not have a return value at all 

32. Which of the following go out of the loop if expn 2 becoming false 
(a) while(expn 1)\{...if(expn 2)continue;}(b) while(!expn
1)\{if(expn 2)continue;...} 
(c) do{..if(expn 1)continue;..}while(expn 2); (d) while(!expn
2)\{if(expn 1)continue;..\} 

33. Consider the following program 
main() 
{
unsigned int i=10; 
while(i>=0) 
{ 
printf("%u",i) 
i--; 
} 
} 
How many times the loop will get executed 
(a)10 (b)9 (c)11 (d) infinite 

34.Pick out the odd one out 
(a) malloc() (b) calloc() (c) free() (d) realloc() 

35.Consider the following program 
main() 
{ 
int a[5]={1,3,6,7,0}; 
int *b; 
b=&a[2]; 
} 
The value of b[-1] is 
(a) 1 (b) 3 (c) -6 (d) none 

36. # define prod(a,b)=a*b 
main() 
{ 
int x=2; 
int y=3; 
printf("%d",prod(x+2,y-10)); 
} 
the output of the program is 
(a) 8 (b) 6 (c) 7 (d) None 

37.Consider the following program segment 
int n,sum=1; 
switch(n) 
{ 
case 2:sum=sum+2; 
case 3:sum*=2; 
break; 
default:sum=0; 
} 
If n=2, what is the value of sum 
(a) 0 (b) 6 (c) 3 (d) None of these 

38. Identify the incorrect one 
1.if(c=1) 
2.if(c!=3) 
3.if(a4.if(c==1) 

(a) 1 only (b) 1&3 (c) 3 only (d) All of the above 

39. The format specified for hexa decimal is 
(a) %d (b) %o (c) %x (d) %u 

40. Find the output of the following program 
main() 
{ 
int x=5, *p; 
p=&x 
printf("%d",++*p); 
} 
(a) 5 (b) 6 (c) 0 (d) none of these 

41.Consider the following C code 
main() 
{ 
int i=3,x; 
while(i>0) 
{ 
x=func(i); 
i--; 
} 
int func(int n) 
{ 
static sum=0; 
sum=sum+n; 
return(sum); 
} 
} 
The final value of x is 
(a) 6 (b) 8 (c) 1 (d) 3 

42. Int *a[5] refers to 
(a) array of pointers (b) pointer to an array (c) pointer to apointer (d) none of these 


Latest Sample Placement Paper Of TCS For Year-2009-10 (Aptitude, English) 


1. (38 x 142) ÷ (4096) =? 

1) 337.25 -Answer
2) 269.8 
3) 490 
4) 84.3125 
5) None of these 

2. 3 + 33.3 + 3.03 + 333 =? 

1) 666 
2) 636.33 
3) 372.33 -Answer
4) 672.66 
5) None of these 

3. (17.52)2 =?

1) 280.9504 
2) 290.5904 
3) 306.9504 -Answer
4) 280.5904 
5) None of these 

4. (37% of 2370) – (41% of 2105) =? 

1) 13.85 -Answer
2) 12.56 
3) 13.10 
4) 12.15 
5) None of these 

Directions (Q. 5-14): 

In the following passage there are blanks, each of which has been numbered. 
These numbers are printed below the passage and against each five words are suggested, one of which fits the blank appropriately. Find out the appropriate words. 
It is a 5 that Communists are opposed toeconomic reforms. The fact of the life is that Communists are the most 6 fighters for economic reforms, the reforms that lead to self-reliant and democratic economic development
with social justice. To term the market-oriented changes as reform is a 7. The development strategy 8 under Structural Adjustment and dictated by the World Bank, IMF and WTO is a strategy for the 9 development of capitalism under which the working people, who are the main productive force, are made 10, kept unemployed, thrown out of jobs, and so on. It has no social relevance. In the phase of globalization, no country can develop in 11 and entry of the foreign capital can not be12 altogether. Integration with world economy has to ensure the free and speedy 13 of the national economy. Foreign capital has to be allowed in the areas where we really need huge investment, which our resources cannot meet, and where we need technology, not available in the country. Economic14 should not mean license for plunder by MNCs. 

5. 
1) problem 
2) mysticism 
3) curiosity 
4) misconception -Answer
5) mistake 

6. 
1) liberal 
2) demanding 
3) strident -Answer
4) detrimental 
5) horrible 

7. 
1) misnomer -Answer
2) terrible 
3) danger 
4) tragedy 
5) shame 

8. 
1) reached 
2) verified 
3) assembled 
4) hurled 
5) envisaged -Answer

9. 
1) westernised 
2) unfettered -Answer
3) gross 
4) accumulated 
5) astounding 


10. 
1) labourers 
2) culprit 
3) redundant -Answer
4) escapists 
5) icons 

11. 
1) unison 
2) liberalisation 
3) coalition 
4) association 
5) isolation -Answer

12. 
1) forced 
2) loaded 
3) denied -Answer
4) stated 
5) scrutinised 

13. 
1) development -Answer
2) empowerment 
3) unity 
4) mobilisation 
5) cohesion 

14. 
1) growth 
2) potential 
3) strategy 
4) reforms -Answer
5) vitality 
Directions (Q. 15-24): Given below are two passages. Read them carefully and answer the questions given below them. 
Certain words are given in bold to help you to locate them while answering some of the questions. 

Passage – I 
Americans have a variety of superstitions like walking under a ladder, a black cat crossing your path and the number 13, none of which seem to have a logical reason for being. However, there are no serious taboos attached to them. Individuals may have an array of sensitivities based on their personal beliefs. If you do offend someone inadvertently, a sincere apology will usually go a long way toward making amends. The one sensitivity that almost all Americans have is about slights to their country. Either complaining about the US or expressing an attitude that your culture is superior can cause Americans to take offence. Americans do possess a great deal of culture arrogance, and think that their way is the only right way. They think that the US is the best place on earth, otherwise why would everybody by trying to get here? Whether you agree or not, remember that you are a guest in the US and it would be rude for a guest to insult his host 

15. Which of the following can be presumed about Americans regarding superstition? 
1) It is a cultural custom for them to believe in superstitions. 
2) They can satisfy you by placing arguments about the validity of superstitions. 
3) Americans cannot justify their adherence to superstitions. -Answer
4) Americans are highly superstitious people. 
5) None of these 

16. If you offend an American inadvertently, a sincere apology will 
1) take a long time to repair the damage. 
2) not necessarily by enough to amend it. 
3) be turned down. 
4) succeed in making amends. -Answer
5) None of these 

17. Americans feel usually offended whenever there is a(n) 
1) argument posed before them. -Answer
2) rude remark against their culture. -Answer
3) threat to their sovereignty. 
4) attack on their religion. 
5) None of these 

18. What makes the Americans feel that their country is the best in the world? 
1) mad rush of people from other countries to America 
2) the best facilities available there 
3) their culture and custom which they feel is the best in the world 
4) the economic superiority of America 
5) None of these 

19. What is the antonym of the word inadvertently as given in bold in the passage? 
1) intentionally -Answer
2) occasionally 
3) unwittingly 
4) avowedly 
5) adroitly 


Passage – II 
Population is one resource that never depletes and is a living development parameter. But it is at times interpreted as a hindering factor for development. This happens because population is both a consumer and producer. There are two schools of thought. One which treats population as a resource, and the other as a burden to the society. The truth, in fact, lies somewhere in between. The interplay of factors responsible for population growth and those for development decide the resourcefulness of population. 

20. Why is it said that population is one resource that never depletes? 
1) because other resources deplete 
2) because population is an ever-increasing phenomenon -Answer
3) because population is seen as a resource 
4) because it is an easily available commodity 
5) None of these 

21. Why population is at the same time treated as a resource and also as a burden to the society? 
1) because population is the creator and at the same time it is also the user -Answer
2) because a less number of people are engaged in production and a large number of people are dependent on it 
3) because population is not always a producer but it is always a consumer 
4) when the growth of population is checked it is a resource and when it increases rapidly it is burden to the society 
5) None of these 

22. The resourcefulness of population can be decided by 
(i) skilled manpower (ii) scale of development (iii) population control measures (iv) scale of population growth 
1) All of the above 
2) Only (i),(ii) and (iii) 
3) Only (i) and (iii) -Answer
4) Only (ii) and (iv) 
5) None of these 

23.Which of the following is true in context of the passage? 
1) It is not necessary that the population always grows. 
2) Population is burdensome. 
3) Most of the natural resources are exhaustible. -Answer
4) Population is a big consumer and a meager producer. 
5) None of these 

24.What will be the synonym of the word depletes as given in bold in the passage? 
1) disappears 
2) sustains 
3) worsens 
4) evades 
5) reduces -Answer

25. – 65 x39 + 335 =? 
1) – 849225 
2) – 2200 -Answer
3) – 2870 
4) 2870 
5) None of these 

TCS TCS Model Question Paper Given Below 

TCS Questions 
Note: 1 mark will be deducted for every 3 wrong answers Quantitative/aptitude test (35 questions, 80 minutes) 

1. A Roman was born the first day of the 35th year before Christ and died the first day of the 35th year after Christ. How many years did he live?
(a) 70 (b) 69 (c) 71 (d) 72 

2. A horse starts to chase a dog that has left the stable two hours earlier. The horse runs at an average speed of 2km/hr. It crosses a 10-metre road, two small ponds 3 metres deep, and finally runs along two small streets of 200 metres long. After traveling 6 hrs, 2hrs after sunset, it catches the dog. Compute the speed of the dog in Km/hr?
(a) 20 (b) 22 (c) 16.5 (d) 18.5 

3. Adam sat with his friends in the Chinnaswamy stadium at Madurai to watch the 100 metres running race organized by the Asian Athletics Association. Five rounds were run. After every round half the teams were eliminated. Finally, one team wins the game. How many teams participated in the race?
(a) 30 (b) 32 (c) 41 (d) 54 

4. If an airplane starts at point R and travels 14 miles directly north to S, then 48 miles directly east to T, what is the straight-line distance (in miles) from T to R?
(a) 25 (b) 34 (c) 50 (d) 2500 

5. A scientist was researching into animal behavior in his laboratory. He was very interested in studying the behavior of bears. He travelled a mile to the north and reached the north pole.There he saw a bear. He then followed the bear for an 1 hour to the east with a speed of 2km/hr. After that he travelled south and reached his laboratory in 2 hours. What was the colour of the bear?
(a) Black (b) White (c) Red (d) Blue 


6. A garrison of 3300 men has provisions for 32 days when supplied at the rate of 850 g per head. At the end of 7 days, a reinforcement arrives, and it is found that the provisions can last for 17 days more when supplied at the rate of 825 g per head. What is the strength of the reinforcement?
(a) 1700 (b) 1000 (c) 3000 (d) 2700 

7. Two unemployed young men decided to start a business together. They pooled in their savings, which came to Rs. 2,000. They were both lucky, their business prospered and they were able to increase their capital by 50 per cent every three years. How much did they have in all at the end of eighteen years?
(a) Rs. 22,781.25 (b) Rs. 24,150.25 (c) Rs. 28,140.50 (d) Rs. 18,000 

8. A man divides Rs.8600 among 5 sons, 4 daughters and 2 nephews. If each daughter receives four times as much as each nephew, and each son receives five times as much as each nephew, how much does each aughter receive?
(a) Rs.800 (b) Rs.600 (c) Rs.200 (d) Rs.700 

9. A train starts full of passengers. At the first station, it drops one-third of the passengers and takes 280 more. At the second station, it drops one-half of the new total and takes 12 more. On arriving at the third station, it is found to have 248 passengers. Find the number of passengers in the beginning.
(a) 240 (b) 248 (c) 280 (d) 288 

10. A manufacturer undertakes to supply 2000 pieces of a particular component at Rs.25 per piece. According to his estimates, even if 5% fail to pass the quality tests, then he will make a profit of 25%. However, as it turned out, 50% of the components were rejected. What is the loss to the manufacturer?
(a) Rs.12000 (b) Rs.13000 (c) Rs.14000 (d) Rs.15000 

11. In Tnagar many buildings were under residential category. for buildings they number as 1 to 100. For shops, corporation numbered between 150 and 200 only prime numbers. howmany time 6 will appear in building numbering?
(a) 10 (b) 20 (c) 8 (d) 19 

12. 6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. hence the current average age has become45. find the age of seventh person?
(a) 69 (b) 70 (c) 40 (d) 45 

13. 3, 22 , 7, 45, 15, ? , 31
(a) 45 (b) 90 (c) 91 (d) 35 

14. Which is the smallest no divides 2880 and gives a perfect square?
(a) 1 (b) 2 (c) 5 (d) 6 

15. One grandfather has three grandchildren, two of their age difference is 3, eldest child age is 3 times youngest childs age and eldest childs age is two times of sum of other two children. What is the age of eldest child?
(a) 5 (8) 10 (c) 8 (d) 15 

16. It is dark in my bedroom and I want to get two socks of the same color from my drawer, which contains 24 red and 24 blue socks. How many socks do I have to take from the drawerto get at least two socks of the same color?
(a) 2 (b) 3 (c) 48 (d) 25 

17. 23 people are there, they are shaking hands together, how many hand shakes possible, if they are in pair of cyclic sequence.
(a) 22 (b) 23 (c) 44 (d) 46 

18. There are 10 reading spots in a room. Each reading spot has a round table. Each round table has 4 chair. If different no of persons are sitting at each reading spot. And if there are 10 persons inside the room then how many reading spots donot have atleast a single reader.
(1) 5 (2) 6 (3) 7 (4) None 

19. Middle earth is a fictional land inhabited by Hobbits, Elves, dwarves and men. The Hobbits and the Elves are peaceful creatures who prefer slow, silent lives and appreciate nature and art. The dwarves and the men engage in physical games. The game is as follows .
A tournol is one where out of the two teams that play a match, the one that loses get eliminated. The matches are played in different rounds where in every round , half of the teams get eliminated from the tournament. If there are 8 rounds played in a knock-out tournol how many matches were played?
(a) 257 (b) 256 (c) 72 (d) 255 

20. There are two water tanks A and B, A is much smaller than B. While water fills at the rate of one litre every hour in A, it gets filled up like 10, 20, 40, 80, 160... in tank B. ( At the end of first hour, B has 10 litres, second hour it has 20, and so on). If tank B is 1/32 filled after 21 hours, what is the total duration required to fill it completely?
(a) 26 hrs (b) 25 hrs (c) 5 hrs (d) 27 hrs 

21. A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
(a) 2.4 mph (b) 4 mph (c) 4.8 mph (d) 5 mph 

22. A pizza shop, there were 2 kinds of pizzas available. But now they have introduces 8 new types, a person buy two different type pizzas of new type in how many ways he can select?28
(a) 24 (b) 43 (c) 56 (d) 58 

23. A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of box is 264kg. How many 2kg packets are there?
(a) 100 (b) 114 (c) 200 (d) 208 

24. A man, a woman, and a child can do a piece of work in 6 days. Man only can do it in 24 days. Woman can do it in 16 days and in how many days child can do the same work?
(a) 8 (b) 14 (c) 16 (d) 18 

25. A bus started from bus stand at 8.00a m and after 30 min staying at destination, it returned back to the bus stand. The destination is 27 miles from the bus stand. The speed of the bus 50 percent fast speed. At what time it returns to the bus stand.
(a) 11a.m (b) 12a.m (c) 10a.m (d) 10.30p.m 


26. 2 oranges, 3 bananas and 4 apples cost Rs.15. 3 oranges, 2 bananas, and 1 apple costs Rs 10. What is the cost of 3 oranges, 3 bananas and 3 apples?
(a) Rs10 (b) Rs15 (c) Rs20 (d) Rs25 

27. If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.
(a) 40% (b) 55% (c) 35% (d) 30% 

28. Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by
him. What is the length of faster train?
(a) 100m (b) 75m (c) 120m (d) 50m 

29. A man spends half of his salary on household expenses, 1/4th for rent, 1/5th for travel expenses, the man deposits the rest in a bank. If his monthly deposits in the bank amount 50,
what is his monthly salary?
(a) Rs.500 (b) Rs.1500 (c) Rs.1000 (d) Rs. 900 

30. It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010
(a) Sunday (b) Saturday (c) Friday (d) Wednesday 

31. In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?
(a) 360 (b) 480 (c) 720 (d) 5040 

32. The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players isone year less than the average age of the whole team. What is the average age of the team?
(a) 23 years (b) 24 years (c) 25 years (d) None of these 

33. Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together?
(a) 4 (b) 10 (c) 15 (d) 16 

34. The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number?
(a) 240 (b) 270 (c) 295 (d) 360 

35. In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The
duration of the flight is:
(a) 1 hour (b) 2 hours (c) 3 hours (d) 4 hours 

TCS Model 1 
1. (1/2) of a number is 3 more than the (1/6) of the same number?
a) 6 b) 7 c) 8 d) 9 
Solution:
Let the number be x,
((1/2)*x)=3+(1/6)*x,
Then solve x = 9. 

2. (1/3) of a number is 3 more than the (1/6) of the same number?
a) 6 b) 16 c) 18 d) 21 

3. (1/3) of a number is 6 more than the (1/6) of the same number?
a) 6 b) 18 c) 36 d) 24 

4. (2/3) of a number is 4 more than the (1/6) of the same number?
a) 6 b) 8 c) 36 d) 24 

5. (1/3) of a number is 5 more than the (1/6) of the same number?
a) 6 b) 36 c) 30 d) 72 

TCS Model 2:

1. There are two water tanks A and B, A is much smaller than B. While water fills at the rate of 1 liter every hour in A, it gets filled up like, 10, 20, 40, 80, 160 in tank B. (At the end of first hour, B has 10 liters, second hour it has 20 liters and so on). If tank B is 1/32 filled of the 21 hours, what is total duration of hours required to fill it completely?
a) 26 B)25 c)5 d)27 
Solution: for every hour water in tank in B is doubled, 
Let the duration to fill the tank B is x hours.
x/32 part of water in tank of B is filled in 21 hours, 
Next hour it is doubled so, 
2*(x/32) part i.e (x/16) part is filled in 22 hours,
Similarly (x/8)th part in 23 hours,(x/4)th part is filled in 24 hours, 
(x/2)th part is filled in 25 hours, (x)th part is filled in 26 hours
So answer is 26 hours. 

2. There are two pipes A and B. If A filled 10 liters in an hour, B can fill 20 liters in same time. Likewise B can fill 10, 20, 40, 80, 160. If B filled in 1/16 of a tank in 3 hours, how much time will it take to fill the tank completely?
a) 9 B) 8 c) 7 d) 6 

3. There are two water tanks A and B, A is much smaller than B. While water fills at the rate of 1 liter every hour in A, it gets filled up like, 10, 20, 40,80, 160...in tank B. 1/8 th of the tank B is filled in 22 hours. What is the time to fill the tank fully?
a) 26 B) 25 c) 5 d) 27 

4. A tank is filled with water. In first hour 10 liters, second hours 20 liters, and third hour 40 liters and so on. If time taken to fill of the tank if 5 hours. What is the time taken to fill up the tank?
a) 5 B) 8 c) 7 d) 12.5 

5. If a tank A can be filled within 10 hours and tank B can be filled in 19 hours then, what is the time taken to fill up the tank completely?
a) 21 B) 38 c) 57 d) 76 
TCS Model 3:

1. 6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45.Find the age of seventh person?
a) 43 b) 69 c) 52 d) 31 

Solution:
Total age of 6 persons is x hours,after two years total age of 6 persons is x+12
Average age of 6 persons is after two years is 43
So (x+12)/6=43,then solve x,
After 7th person is added then (x+7th person age)/7=45
So we will get 7th person age easily 

2. In a market 4 men are standing. The average age of the four before 4years is 45, after some days one man is added and his age is 49. What is the average age of all?
a) 43 b) 45 c) 47 d) 49 

3. In a shopping mall with a staff of 5 members the average age is 45 years. After 5 years a person joined them and the average age is again 45 years. What�s the age of 6th person? 
a) 25 b)20 c)45 d)30 

4. In a market 4 men are standing .The average age of the four before 2 years is 55, after some days one man is added and his age is 45. What is the average age of all?
a) 55 b) 54.5 c) 54.6 d) 54.7 

TCS Model 4: 
1. In the reading room of a library, there are 23 reading spots. Each reading spot consists of a round table with 9 chairs placed around it. There are some readers such that in each occupied
reading spot there are different numbers of readers. If in all there are 36 readers, how many reading spots do not have even a single reader?
a) 8 b) none c) 16 d) 15 
Solution: 23 reading spots, Each reading spot consists of 9 chairs placed around it so There are some readers such that in each occupied reading spot there are different numbers of
readers. For each table different no of persons are sat,so for first table 1 person is sit,2nd table 2 persons are sit 36 
readers means(1+2+3+4+5+6+7+8 so 8 tables are filled so 23-8=15 reading spots does not have single reader. 

2. In the reading room of a library, there are 10 tables, 4 chairs per table. In each table there are different numbers of people seated. How many tables will be left out without at least 1 person?
a) 8 b) 6 c) 2 d) 7 

3. In the reading room of a library, there are 10 tables, 4 chairs per table. In each table there are different numbers of people seated. How many ways they will sit in the library so that no chair would be blank?
a) 8 b) 6 c) 2 d) 7 

TCS Model 5:
1. A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
a) 2.4 mph b) 4.8 mph c) 4 mph d) 5 mph 
Solution: Average speed=(2*x*y)/(x+y) 

2. A man travels from A to B at 4 mph over a certain journey and returns over the same route to A, at 5 mph. What is his average speed for the journey?
a) 4.44 mph b) 4.8 mph c) 4.887 mph d)5 mph 

3. A person is rock climbing at an altitude of 800 m. He go up by 7 mph. and come down by 9 mph. what was his average speed?
a) 7.875 mph b) 7.125 mph c) 7mph d) 7.5 mph 

4. Find average speed if a man travels at speed of 24kmph up and 36kmph down at an altitude of 200m?
a) 28.8 mph b) 27.8 mph c) 27.5mph d) 30 mph 

5. Person travels to a hill, if he goes from A to B with speed of 4kmph and returns back to B with speed of 5kmph. What is his average speed of journey?
a) 4.5kmph b) 4.44kmph c) 9kmph d) 4.245kmph 

6. A man travels from A to B at 70 mph over a certain journey and returns over the same route to A, at 80 mph. What is his average speed for the journey?
a) 74.66 b)75 c)74.33 d)74.99 

7. Find average speed if a man travels at speed of 24kmph up and 36kmph down at an altitude of 200m.
a) 28.8 b)28 c)27 d)28.6 

TCS Model 6: 
1. Susan made a block with small cubes of 8 cubic cm volume to make a block ,3 small cubes long, 9 small cubes wide and 5 small cubes deep. She realizes that she has used more small cubes than she really needed. She realized that she could have glued a fewer number of cubes together to lock like a block with same dimensions, if it were made hollow. What is the minimum number of cubes that she needs to make the block?
a) 114 b) 135 c) 21 d) 71 

Solution: I do not know perfectly but I got some solutions from internet I do not know correctly whether it is tru e or not,((3*9*5))-((3-2)*(9-2)*(5-2)) so answer is 114. 

2. A boy wants to make cuboids of dimension 5m, 6m and 7m from small cubes of .03 m3. Later he realized he can make same cuboid by making it hollow. Then it takes some cubes less. What is the number of the cubes to be removed?
a) 2000 b) 5000 c) 3000 d) 7000 

3. Smita was making a cube with dimensions 5*5*5 using 1*1*1 cubes. What is the number of cubes needed to make a hollow cube looking of the same shape?
a) 98 b) 104 c) 100 d) 61 

4. Leena cut small cubes of 10 cm dimension each. She joined it to make a cuboid of length 100 cm, width 50 cm and depth 50 cm. How many more cubes does she need to make a perfect cube?
a) 500 b) 250 c) 750 d) 650 

5. Leena cut small cubes of 3 cubic cm each. She joined it to make a cuboid of length 10 cm, width 3 cm and depth 3 cm. How many more cubes does she need to make a perfect cube?
a) 910 b) 250 c) 750 d) 650 

6. A lady builds 9cm length, 10cm width,3cm height box using 1 cubic cm cubes. What is the minimum number of cubes required to build the box?
a) 730 b) 270 c) 720 d) 310 

TCS Model 8: 
1. (40*40*40 31*31*31)/(40*40+40*31+31*31)=?
a)8 b)9 c)71 d)51 

Solution:a3 -b3 =(a-b)*(a2+a*b+b2) so from this formula we will find (a-b) value 

2. (98*98*98 73*73*73)/( 98*98*98 73*73*73)=?
a).171 b).4 c).420 d).415 

3. (209*144)^2 + (209*209)+(209*144)+(144*144) = ?
a)905863729 b)905368729 c)905729368 d)65 

TCS Model 9: 
1. ((4x+3y)+(5x+9y))/(5x+5y) = ? as (x/2y) = 2
a)8 b)none c)16 d)15 
Solution: substitute x=4y in above we can find solution 

2. x/2y = 2a,then 2x/x-2ay=?
a)4 b)8 c)16 d)2 

3. 3X/5Y = 5Y/3X�..Find the value of X/Y
a) 3/5 b) 5/3 c) 2/5 d) 5/2 

4. What is the value of (3X+8Y)/(X-2Y),if X/2Y=2
a) 8 b) none c) 10 d) 13 

5. (4x+3y)+(5x+9y))/(5x+5y) = ? as (x/2y) = 2
a) 48/5 b) 46/5 c) 47/5 d) 49/5 

6. ((4x+2y)/(4x-2y)= ? as (x/2y) = 2
a) 8/7 b) 9/7 c) 11/7 d) 6/7 

TCS Model 10: 
1. A girl has to make pizza with different toppings. There are 8 different toppings. In how many ways can she make pizzas with 2 different toppings?
a) 16 b) 56 c) 112 d) 28 
Solution: 8c2 

2. A pizza shop made pizzas with many flavors. There are 10 different flavors, in that 7 flavors are taken to make pizza. In how many ways they can arrange?
a) 240 b) 120 c) 65 d) 210 

3. A pizza shop made pizzas with many flavours. There are 9 different flavors, in that 2 flavors are taken to make pizza. In how many ways they can arrange?
a) 16 b) 26 c) 36 d) 46 

TCS Model 11: 
1. 3, 22, 7, 45, 15, ?, 31
a) 91 b)151 c) 90 d) 5 

2. 8 6 17 14 35 31 75 _ 143? Ans :-66 

3. Inspired by Fibonacci series Sangeet decided to create his own series which is 1, 2, 3, 7, 7,22, 15, 67, 31, _, 63?
a) 202 b) 31 c) 76 d) 49 

4. 3, 12, 7, 26, 15, ?
a) 54 b) 27 c) 108 d) 31 

5. 1! + 2! + ��. + 50!=?
a)3.1035*10^64 b)2.1021*10^65 c)3.1035*10^63 d)3.1035*10^62 

6. 1, 2, 3, 6, 7, 14, _, 32? 

7. 5, 9, 12, 18, 26, 36, 47, 72, _?
a) 75 b) 135 c) 100 d) 55 

8. 3, 15, x, 51, 53,159,161
a) 17 b) 34 c) 54 d) 112 

TCS Model 12: 
1. Simple question but big one on average age.sth like a, b, c weighted separately 1st a, b, c ,then a& b, then b & c ,then c & a at last abc, the last weight was 167,then what will be the average weight of the 7 reading?
a) 95 b) 95.428 c) 95.45 d) 94 
Solution: Last weight abc is 167i.e three persons weight is 167 .in first 6 combinations a,b,c,ab,bc,ac i.e a checked weight for 3 times totally like that band c also so total weight in all 7 combinations is (4*167) 
Average is (668/7)=95.42 
TCS Model 13: 
1. A toy train produces 10 different sounds when it moves around a circular toy track of radius 5 m at 10 m per min. However, the toy train is defective and it now produces only 2 different tunes at random. What are the odds that the train produces for consecutive music tones of the same type?
a) 1 in 16 B) 1 in 4 c) 1 in 8 d) 1 in 32 


Solution: Initially it produces 10 sounds and the defect came and now it produces only 2 different sounds and consecutively so there are totally 2 sounds and we have to select on sound and the probability is and it produces the same sound consecutively for 2 times so the probability becomes �*1/2 ie � 

2. A car manufacturer produces only red and blue TCS Models which come out of the final testing area at random. What are the odds that five consecutive cars of same color will come throughthe test area at any one time?
a) 1 in 16 b) 1 in 125 c) 1 in 32 d) 1 in 25 

TCS Model 15: 
1. A triangle is made from a rope. The sides of the triangle are 25 cm, 11 cm and 31 cm. What will be the area of the square made from the same rope?
a) 280.5625 b) 240.5625 c) 280.125 d) 240 

Solution: Add all sides 25+11+31 to get rope length rope length =67,rope is made in to as square. So side of square is 67/4=16.75 and so area is 16.75*16.75=280.5625 

2. A triangle is made from a rope. The sides of the triangle are 21 cm, 24 cm and 28 cm. What will be the area of the square made from the same rope?
a) 280.5625 b) 333.0625 c) 333.0125 d) 400 

TCS Model 16: 
1. What is the distance between the z-intercept from the x-intercept in the equation
ax+by+cz+d=0
Solution: intercept form equation 

2. What is the distance of the z-intercept from the x-intercept in the equation ax+by+cz=d (I do not remember the values of a, b, c, d). 

TCS Model 17: 
1. A scientist was researching on animal behaviour in his lab. He was very interested in analysing the behaviour of bear. For some reason he travelled 1mile in north direction & reached at North Pole. There he saw a bear. He then followed the bear around 1 hr with a speed of 2km/hr in east direction. After that he travelled in south direction & reached at his lab in2 hrs. Then what is the color of the bear?
a) White b) Black c) Gray d) Brown 
Solution is: White. above all the matter is nonsense 

TCS Model 18: 

1. Out of 7 children the youngest is boy then find the probability that all the remaining children are boys
a) 1/64 b) 1/32 c) 1/128 d) 1/256 

TCS Model 19: 
1. Usha bought a linen cloth and rope to build a tent. If the rope is 153 m long and it is to be cut into pieces of 1m length, then how many cuts are to be made to cut the ropes into 153 pieces?
a) 153 b) 152 c) 154 d) 155 
Solution: To make it 153 pieces we have to cut 152 times so obviously after last cut we got 153rd piece 

2. A person has to make 146 pieces of a long bar. He takes 4 seconds to cut a piece. What is the total time taken by him in seconds to make 146 pieces?
a) 584 b) 580 c) 730 d) 725 
Solution: 146 pieces means 145 cuts so for each cut it takes 4 seconds means total time 145*4=580 

3. A person has to make 141 pieces of a long bar. He takes 2 seconds to cut a piece. What is the total time taken by him in seconds to make 141 pieces?
a) 560 b) 280 c) 112 d) 324 

TCS Model 20: 

1. Spores of a fungus, called late blight, grow and spread infection rapidly. These pathogens were responsible for the Irish potato famine of the mid-19th century. These seem to have attacked the tomato crops in England this year. The tomato crops have reduced and the price of the crop has risen up. The price has already gone up to $45 a box from $27 a box a month ago. How much more would a vegetable vendor need to pay to buy 27 boxes this month over what he would have paid last month?
a) $27 b) $18 c) $45 d) $486 
Solution: See last 3 lines only answer is 45-27=18 

TCS Model 21: 
1. A Person buys a horse for 15 ponds, after one year he sells it for 20 pounds. After one year, again he buys the same horse at 30 pounds and sells it for 40 pounds. What is the profit for that person? 
Solution: here we cannot consider depreciation or decay of item accto answer so go acc to 
answer 
Totally 5+10=15$profit

 
TCS Model 22: 
1. John buys a cycle for 31 dollars and given a cheque of amount 35 dollars. Shop Keeper exchanged the cheque with his neighbour and gave change to John. After 2 days, it is known that cheque is bounced. Shop keeper paid the amount to his neighbour. The cost price of cycle is 19 dollars. What is the profit/loss for shop keeper? 
a) loss 23 b) gain 23 c) gain 54 d) Loss 54 
Solution: Loss= Change of money given to john(4$)+actual cycle cost 19$=23$ loss 

TCS Model 23: 
1. A lady has fine gloves and hats in her closet- 18 blue, 32 red, and 25 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove.How many gloves must she take out to make sure she has a pair of each color?
a) 50 b) 8 c) 60 d) 42 

2. A lady has fine gloves and hats in her closet- 14 blue, 20 red, and 18 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color? 

3. A lady has fine gloves and hats in her closet- 13 blue, 27 red, and 40 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color? 

4. A lady has fine gloves and hats in her closet- 25 blue, 7 red, and 9 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove.How many gloves must she take out to make sure she has a pair of each color? 

5. A lady has fine gloves and hats in her closet- 26 blue, 30 red, and 56 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color? 

TCS Model 24: 
1. Sangakara and Ponting select batting by using a dice, but dice is biased. So to resolve,Ponting takes out a coin. What is the probability that coin shows correct option?
a)1/2 b)1/6 c)1/12 d)6/10 
Solution is. 

2. There is a die with 10 faces. It is not known that fair or not. 2 captains want to toss die forbatting selection. What is the possible solution among the following?
a) If no. is odd it is head, if no. is even it is tail
b) If no. is odd it is tail, if no. is even it is head
c) Toss a die until all the 10 digits appear on top face. And if first no. in the sequence is odd then consider it as tail. If it is even consider it as head. 

TCS Model 25:
1. In a family there are some boys and girls. All boys told that they are having equal no ofbrothers and sisters and girls told that they are having twice the no. of brothers than sisters.How many boys and girls present in a family?
a) 4 boys and 3 girls b) 3 boys and 4 girls c) 2 boys and 5 girls d) 5 boys and 2 girls 

TCS Model 26: 
1. 10 men and 10 women are there, they dance with each other, is there possibility that 2 men are dancing with same women and vice versa?
a) 22 b) 20 c) 10 d) none 

2. There are 100 men and 100 women on the dance floor. They want to dance with each other. Then which of the following statements is always true: 
a) There are 2 men who danced with equal no. of women’s
b) There are 2 women who danced with equal no. of men
a) both a and b b)only a c)only b d)none 

TCS Model 27: 
1. Middle- earth is a fictional land inhabited by hobbits, elves, dwarves and men. The hobbits and elves are peaceful creatures that prefer slow, silent lives and appreciate nature and art. The dwarves and the men engage in physical games. The game is as follows. A tournament is one where out of the two teams that play a match, the one that loses get eliminated. The matches are played in different rounds, where in every round; half of the teams get eliminated from the tournament. If there are 8 rounds played in knock out tournament, how many matches were played?
a) 257 b) 256 c) 72 d) 255
Solution: Do not know perfect logic 28 

2. A game is played between 2 players and one player is declared as winner. All the winners from first round are played in second round. All the winners from second round are played in third round and so on. If 8 rounds are played to declare only one player as winner, how many players are played in first round?
a) 256 b) 512 c) 64 d) 128 

TCS Model 28: 
1. Metal strip of width �x� cm. 2 metal strips are placed one over the other, then the combine length of 2 strips is �y�. If �z� strips are placed in that manner. What is the final width of that arrangement? 

2. A, B, C, D, E are there among A, B, C are boys and D, E are girls D is to the left of A and no girl sits at the middle and at the extemes. Then what is the order of their sittings. 

TCS Model 29: 
1. There is 7 friends (A1, A2, A3....A7).If A1 have to have shake with all without repeat. How many handshakes possible?
a) 6 b) 21 c) 28 d) 7 
Solution: For handshakes type question i am confirming you that if the there are n membersare there Handshakes are given in linear manner =n-1(last person cannot give hand shake to first
person) Handshakes are given in cyclic manner =n(last person can give hand shake to first person) But i do not know perfectly for repetition it is nc2 

2. 49 members attended the party. In that 22 are males, 17 are females. The shake hands between males, females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are possible?
a) 122 b) 66 c) 48 d)1 28