Question

What is the number that should be added in place of $x$ such that $47x2$ to make it exactly divisible by $6$?

• A. $0$
• B. $1$
• C. $2$
• D. $3$

Answer 1

The correct option is C $2$

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, $4+7+x+2=x+13$
So, $2+13=15$
Hence, $4722$ is divisible by $6$, because the last digit ends with even no. and the number is multiple of $3$.
So, option C is correct.