Question

The ratio of boys to girls in a class is 3:1. There are 36 students in the class. How

many more boys than girls are there?

Answer 1

There are 18 more bots than girls.

Explanation:

total units=3+1

=4

4 units=36

1 unit=36÷4

=9

difference in units=3-1

=2

2 units=2×9

=18

Answer 2

There are 18 more boys than girls.

Explanation:

Let's think of the ratio 3 : 1 as 3x : x

If 3 : 1 added up is the total students in the class (36) then 4x = 36

Now we just divide 36 by 4

36/4 = 9

so x = 9

The number of boys is 3 * 9 = 27

The number of girls is 9

27 - 9 = 18.

There are 18 more boys than girls.