Numerical Ability Model Questions

UGC LDC clerk examination model questions with answers-Aptitude, analytical, reasoning, general intelligence, general awareness, english questions with answers

Directions (Q.1.5) In each of the following questions a number   series is given which has only one wrong number. You have to find out        the wrong number.

1.  7.5  47.5  87.5  157.5  247.5  357.5  487.5

(1)       357.5              

(2)    87.5   

(3)    157.5                  

(4)    7.5  

(5)    47.5   (Ans)

2.  1500  1581  1664  1749   1833   1925  2016

(1)    1581                

(2)    1664  

 (3)    1833(Ans)       

(4)    1925  

(5)    1749

 3.  1331  2197  3375  4914  6859  9261  12167

(1)    4914(Ans)               

(2)    6859
(3)    9261                        

(4)    2197
(5)    12167

 

4.  13  16  21  27  39  52  69

 (1)   21                             

(2)    39

(3)    27     (Ans)              

(4)    52

(5)    16

 5.  66  91  120  153   190  233  276

(1)    120                           

(2)    233  (Ans)

(3)    153                          

(4)    276

(5)    190

 Directions (Q.6.-10)  What will come in place of the question   marks (?) in the following questions?

 6.  22.5 Χ 0.05 = ?

        (1)    11.25
(2)    1.125    (Ans)   
(3)    22.55
(4)    112.5
(5)    None of these

 

7.  999 + 111 Χ 0.5 = ?

(1)    555
(2)    500
(3)    1054.5   (Ans)  
(4)    1110.5
(5)    None of these

 

8.  40% of 250 = 50% of ?

         
(1)    200   (Ans)       
(2)    100
(3)    150
(4)    400
(5)    None of these

 9  (4)^? = 1024

         
(1)    1
(2)    2
(3)    3
(4)    4
(5)    None of these   (Ans) 

10.  ½ +¼ + ¾ + 2/3 = ?

         
(1)    2  1/5       
(2)    1/16
(3)    2  1/16
(4)    2  1/6    (Ans)  
(5)    None of these

Directions (Q.11.18)  What  approximate value should come in    place of the question mark (?) in the following questions ? (You are not    expected to calculate the exact value.)

 

11.  (98 Χ198) ÷ (48 Χ 148) = ?

       
(1)    3.13                         
(2)    2.43
(3)    2.73   (Ans)
(4)    3.53
(5)    2.41

12.  (2.0001)³ =?

         
(1)    6                             
(2)    6.75
(3)    5
(4)    4
(5)    8   (Ans)

13.  5.6% of 240 ÷ 0.3% of 480 = ?

          (1)    8.43                         
(2)    9.33  (Ans)
(3)    7.53
(4)    8.33
(5)    13.44

14.  √4556 + √7943 – 56 =?

(1)    100   (Ans)
(2)    150
(3)    200
(4)    250
(5)    125

 15.  (1786 + 23.894 + 3251) ÷ 50 = ?

(1)    81            
(2)    121
(3)    131
(4)    101  (Ans)
(5)    91

16.  The difference between 55% of a number and 25% of the same number is 11.10. What is 75% of that number?

       
(1)    27.75(Ans)
(2)    37
(3)    21.25
(4)    45
(5)    None of these

17.  The average of the ages of 3 friends is 23. Even if the age of the 4^th friend is added the average remains 23. What is the age of the 4^th friend ?

         
(1)    32                    
(2)    21
(3)    23  (Ans)
(4)    Cannot be determined
(5)    None of these

18.  8 men working for 9 hours a day complete a piece of work in 20 days. In how many days can 7 men working for 10 hours a day complete the same piece of work?

         (1)    21 days            
(2)    20 3/5 days
(3)    20 ½ days
(4)    21 3/7 days
(5)    None of these  (Ans)

19.  Samir drove at the speed of 45 km from home to a resort. Returning over the same route, he got stuck in traffic and took an hour longer, also he could drive only at the speed of 40 km. How  many kilometers did he drive each way ?

          (1)    250 km             
(2)    300 km
(3)    310 km
(4)    275 km
(5)    None of these (Ans)

 

20.  What is the greater of two numbers whose product is 640, if the sum of the two numbers, exceeds their difference by 32?

          (1)    45            
(2)    50
(3)    55
(4)    40  (Ans)
(5)    None of these