Question

Here are some of my clues to a mystery number the GCF of 18, 36, and me is 2, i am a multiple of 5, i am greater than 18 and less than 30. what am I? PLEASE HELP!

Answer 1

I am 20.

Explanation:

The GCF is 2 so the mystery number x must be even.

And as I am between 18 and 30 I could be

20, 22, 24, 26 or 28

But I am a multiple of 5 so i must be 20.