Question

Fill in the blanks with the smallest digit to make the number divisible by $3$:

$47\_\_\_93$

Answer 1

The divisibility rule of $3$ states that if the sum of the digits of a whole number is a multiple of $3$, then the original number is also divisible by $3$.

Thus, $4+7+9+3=23$

Thus for nearest multiple of $3$ we need to add $1$

such that $23+1=24$