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A child was told to multiply a certain number by 252 and he got the answer as 677364. If except for the two 7â€™s all other numbers are correct, what are the correct digits in the answer?

A.	11	B.	22
C.	44	D.	88

Answer and Explanation

Answer:44

Explanation:
252 Ã— k = 6x x364
6x x364 is divisible by 4 Ã— 7 Ã— 9
Using test of divisibility by 9, we get 6 + x + x + 3 + 6 + 4 is divisible by 9
19 + 2x is divisible by 9
x has to be 4, the number is 644364.

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