Question

Which of the following numbers is not divisible by $10$ ?

• A. $10$
• B. $20$
• C. $15$
• D. All of the above

Answer 1

The correct option is C $15$

A number is divisible by $10$ if it contains $0$ in the units place.

So, $10$ and $20$ are divisible by $10$.

And, $15$ is not divisible by $10$.