Question

Replace $*$ by a digit to make the number exactly divisible by $9$

$*8768$

Answer 1

A number is divisible by $9$ if the sum of its digits is divisible by $9$.

$*8768$$=$$*+8+7+6+8=*+29$

Observe that when $*$$=$$7$, then the sum of its digits is divisible by $9$

$\therefore 29+7=36$

Hence, the $*$ will replace by $7$.