Given that the number ` 7713 a8` is divisible by 4, where a is a digit what are the possible values of ?

Explanation

Divisibility of `4` =Last two numbers should be divisible by `4`
so the given number is `7713a8`only
If we keep `a=4,a=8`the number will be divisible by `4`
`a=4,771348` last two numbers sum is `12` so it is divisible.
`a=8,771388` sum of last two numbers are `16` is divisible.