Write the contrapositive of the following statement "If a number is divisble by 9, then it is divisible by 3"

Contrapositive of a statement means if p then q is if not q then not p.

Hence contrapositive of the statement "If a number is divisible by 9, then it is divisible by 3" is
If a number is not divisible by 3, then it is not divisible by 9.