Question

Find the smallest digit that should be replaced at $*$ place in the number $248*6$ so that the number is divisible by $6$.

Answer 1

Divisibility by 6 : Just check the original number to see if it is both an even number (divisible by $2$) and divisible by $3$.

so, the given number is even so it is divisible by $2$.

Now Checking for $3$

$2+4+8+*+6=20+*$

Hence, We can use $1,4,7$ on place of $*$ but $1$ is the smallest digit.