Question

At a school the ratio of the number

of boys to number of girls is 9:11
There are 96 more girls than boys.
Work out the total number of
students at the school.

Answer 1

boys=432 girls=528

Explanation:

11b=9g

g=b+96

11b=9(b+96)

11b=9b+864

11b-9b=864

2b=864

b=432

g=432+96

g=528