Question

What is the least number that should be added to $322$ to make it exactly divisible by $6$?

• A. $2$
• B. $1$
• C. $3$
• D. $5$

Answer 1

The correct option is A $2$

We know the divisibility rule for $6$:
If the number is exactly divisible by both $2$ and $3$ then the given number is also divisible by $6$.
Here, $3+2+2=7$
So, $7+2=9$.
Hence, $324$ is divisible by $6$, because the last digit ends with even no. and the number is multiple of $3$.
So, option A is correct.