Find the smallest value that must be assigned to number ‘a’ in order for 91876a2 to be divisible by 8.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 3.
8 divisibility rule: last 3 digit should be divided by 8.
For (a = 0), the number is (7602) is not divisible by 8.
For (a = 1), the number is (7612) is not divisible by 8.
For (a = 2), the number is (7622) is not divisible by 8.
For (a = 3), the number is (7632) is divisible by 8.
The smallest value of (a) is (3).