Question

The ratio of boys to girls at the grammar school is 5:7. If there are 95 boys, how many girl are there? Show your work.

A. 163

B. 133

C. 107

D. 68

Answer 1

B

Let total number of students be x.

Ratio of boys to girls= 5:7

=5x:7x

According to question,

5x =95

Or x=95/5

x=19

Now,

Number of girls =7x

=7*19

=133