Question

In a class the ratio of boys to the girls is 7:8 what part of the whole class are girls?

Answer 1

Let the number of boys be 7a

Number of girls = 8a

Total number of students = 7a + 8a

= 15a

Share of girls = 7a/15a

= 7/15

=> Number of girls = 7/15 of number of students in class

Answer 2

Let the number of boys be 7a

Number of girls = 8a

Total number of students = 7a + 8a

= 15a

Share of girls = 7a/15a

= 7/15

=> Number of girls = 7/15 of number of students in class