Question

There are b boys in the class. This is three more than four times the number of girls. How many girls are in the class?

Answer 1

There are `(b-3)/4` girls in the class.

Explanation:

As boys are three more than four times the girls and there are `b` boys, let us first reduce `3` from `b` which gives us `(b-3)` boys.

As such `(b-3)` must be four times number of girls.

Hence, there are `(b-3)/4` girls in the class.