If the number 91876y2 is completely divisible by 8, then the smallest whole number in place of y will be:

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Mathematics : Real Number

If the number 91876y2 is completely divisible by 8, then the smallest whole number in place of y will be:

A. 2

B. 4

C. 3

D. 1

Solution

C. 3

Explanation

For a number to be divisible by 8, the last three digits must be divisible by 8.

Here, 6y2 must be divisible by 8.

For y=3, 632 is divisible by 8.