Which of the following numbers is divisible by $9$?
Practice this question from Chapter Mock 1: Number System, Simplification and Approximation, with options and an explanation.
Question
Which of the following numbers is divisible by $9$?
Option A
236784
Option B — Correct answer
72936
Correct choice.
Option C
23816
Option D
1331
Explanation
A number is divisible by $9$ when the sum of its digits is divisible by $9$. For $72936$, the digit sum is $7+2+9+3+6=27$.