Question

A number is divisible by 9 if ___.

• A. If the product of the digits is divisible by 9
• B. If the sum of the digits of the number is divisible by 9
• C. If it's an even number
• D. If the number ends with 9

Answer 1

The correct option is B

If the sum of the digits of the number is divisible by 9

To verify a number whether it is divisible by 9 without actually dividing the number, we just need to add the sum of the digits of the given number and if the answer is a multiple of 9 or is divisible by 9, then the number is divisible by 9.