Question

Which of the following numbers is divisible by $12$?

• A. $3781$
• B. $3982$
• C. $9853$
• D. $2712$

Answer 1

The correct option is D $2712$

We know the divisibility rule: If a number is exactly divisible by both $3$ and $4$, then the number is divisible by $12$.
Here, the sum of the digits is $2+7+1+2=12$. $12$ is multiple of $3$, so the number is multiple of $3$.
$2712$, last $2$ digits $12$ exactly divisible by $4$, so the number is divisible by $4$.
So, the number $2712$ is divisible by both $3$ and $4$, the number is divisible by $12$.