Numerical Aptitude Testing Questions and Answers


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Which one of the following numbers is exactly divisible by 11?


A. 235641
B. 245642
C. 315624
D. 415624

Answer & Explanation:

Answer: Option D

Explanation: 415624 is exactly divisible by 11.



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(?) - 19657 - 33994 = 9999


A. 63650
B. 53760
C. 59640
D. 61560
E. None of these

Answer & Explanation:

Answer: Option A

Explanation: 19657+33994=53651

Let x - 53651 = 9999

Then, x = 9999 + 53651 = 63650



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(?) + 3699 + 1985 - 2047 = 31111


A. 34748
B. 27474
C. 30154
D. 27574
E. None of these

Answer & Explanation:

Answer: Option B

Explanation: x + 3699 + 1985 - 2047 = 31111

x + 3699 + 1985 = 31111 + 2047

x + 5684 = 33158

x = 33158 - 5684 = 27474.



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How many 3-digit numbers are completely divisible 6 ?


A. 149
B. 150
C. 151
D. 166

Answer & Explanation:

Answer: Option B

Explanation: 3-digit number divisible by 6 are: 102, 108, 114,... , 996

This is an A.P. in which a = 102, d = 6 and l = 996

Let the number of terms be n. Then tn = 996.

a + (n - 1)d = 996

102 + (n - 1) x 6 = 996

6 x (n - 1) = 894

(n - 1) = 149

n = 150

Number of terms = 150.



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How many natural numbers are there between 23 and 100 which are exactly divisible by 6 ?


A. 8
B. 11
C. 12
D. 13

Answer & Explanation:

Answer: Option D

Explanation: Required numbers are 24, 30, 36, 42, ..., 96

This is an A.P. in which a = 24, d = 6 and l = 96

Let the number of terms in it be n.

Then tn = 96a + (n - 1)d = 96

24 + (n - 1) x 6 = 96

(n - 1) x 6 = 72

(n - 1) = 12

n = 13

Required number of numbers = 13.



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