Numerical Aptitude Questions and Answers


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(12345679 x 72) = ?


A. 88888888
B. 888888888
C. 898989898
D. 9999999998

Answer & Explanation:

Answer: Option B

Explanation: 12345679 x 72 = 12345679 x (70 +2)

= 12345679 x 70 + 12345679 x 2

= 864197530 + 24691358

= 888888888



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If the product 4864 x 9 P 2 is divisible by 12, then the value of P is:


A. 2
B. 3
C. 8
D. 5
E. None of these

Answer & Explanation:

Answer: Option E

Explanation: Clearly, 4864 is divisible by 4.

So, 9P2 must be divisible by 3.

So, (9 + P + 2) must be divisible by 3.

P = 1.



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-84 x 29 + 365 = ?


A. 2436
B. 2801
C. -2801
D. -2071
E. None of these

Answer & Explanation:

Answer: Option D

Explanation: Given Exp. = -84 x (30 - 1) + 365

= -(84 x 30) + 84 + 365

= -2520 + 449

= -2071



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If the number 97215 * 6 is completely divisible by 11, then the smallest whole number in place of * will be:


A. 3
B. 2
C. 1
D. 5
E. None of these

Answer & Explanation:

Answer: Option A

Explanation: Given number = 97215x6

(6 + 5 + 2 + 9) - (x + 1 + 7) = (14 - x), which must be divisible by 11.

x = 3



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If the number 5 * 2 is divisible by 6, then * = ?


A. 2
B. 3
C. 6
D. 7

Answer & Explanation:

Answer: Option A

Explanation: 6 = 3 x 2. Clearly, 5 * 2 is divisible by 2. Replace * by x.

Then, (5 + x + 2) must be divisible by 3. So, x = 2.



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