Question

Find the smallest digit that should be replaced at $*$ place in the number $835*86$ so that the number is divisible by $9$.

Answer 1

As we known Divisibility of $9$ is sum of digits should be divisible by $9$.

so, $8+3+5+*+8+6=30+*$

Hence, We can use $6$ on place of $*$ which is the smallest digit.