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Question Papers for Cochin Shipyard Limited
1.A coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm.If the mixture is changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade,how much will the shop save in blending 100 gms.
A.Rs.90
B.Rs.1.00
C.Rs.3.00
D.Rs.8.00
2.There are 200 questions on a 3 hr examination.Among these questions are 50 mathematics problems.It is suggested that twice as much time be spent on each maths problem as for each other question.How many minutes should be spent on mathematics problems
A.36
B.72
C.60
D.100
3.In a group of 15,7 have studied Latin, 8 have studied Greek, and 3 have not studied either.How many of these studied both Latin and Greek
A.0
B.3
C.4
D.5
4. In june a baseball team that played 60 games had won 30% of its game played. After a phenomenal winning streak this team raised its average to 50% .How many games must the team have won in a row to attain this average?
A. 12
B. 20
C. 24
D. 30
5. A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Black begins to work for a period of 6 days. How many days will it take Mr.Blue to complete the contract?
A. 7
B. 8
C. 11
D. 12
6. 2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
A. 30
B. 40
C.58
D. 60
7. There are 5 red shoes, 4 green shoes. If one draw randomly a shoe what is the probability of getting a red shoe
8. What is the selling price of a car? If the cost of the car is Rs.60 and a profit of 10% over selling price is earned
9. 1/3 of girls , 1/2 of boys go to canteen .What factor and total number of classmates go to canteen.
10. The price of a product is reduced by 30% . By what percentage should it be increased to make it 100%
11. There is a square of side 6cm . A circle is inscribed inside the square. Find the ratio of the area of circle to square.
12. There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles .
13. The cost of an item is Rs 12.60. If the profit is 10% over selling price what is the selling price ?
14. There are 6 red shoes & 4 green shoes . If two of red shoes are drawn what is the probability of getting red shoes
15. To 15 lts of water containing 20% alcohol, we add 5 lts of pure water. What is % alcohol.
16. A worker is paid Rs.20/- for a full days work. He works 1,1/3,2/3,1/8.3/4 days in a week. What is the total amount paid for that worker ?
17. If the total distance of a journey is 120 km .If one goes by 60 kmph and comes back at 40kmph what is the average speed during the journey?
18. A school has 30% students from Maharashtra .Out of these 20% are Bombey students. Find the total percentage of Bombay?
19. 20% of a 6 litre solution and 60% of 4 litre solution are mixed. What percentage of the mixture of solution
20.Two cars are 15 kms apart. One is turning at a speed of 50kmph and the other at 40kmph . How much time will it take for the two cars to meet?
21.A person wants to buy 3 paise and 5 paise stamps costing exactly one rupee. If he buys which of the following number of stamps he won't able to buy 3 paise stamps.
22.There are 12 boys and 15 girls, How many different dancing groups can be formed with 2 boys and 3 girls.
23. A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?
(a) 3 days
(b) 8/9 days
(c) 4 days
(d) can't say
24. A car travels a certain distance taking 7 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 5 hrs.What is the distance travelled
(a) 210 kms
(b) 30 kms
(c) 20 kms
(c) none of these
25. A man buys 12 lts of liquid which contains 20% of the liquid and the rest is water. He then mixes it with 10 lts of another mixture with 30% of liquid.What is the % of water in the new mixture?
