Question

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

Answer 1

Answer:

If 7:8 is the ratio of boys to girls in a class, then 8/15 of the total class is girls.

Step-by-step explanation:

Given that the ratio of boys to girls in the class = 7:8

That is if 7x boys are there, then 8x girls will be there

So the part of the girls in the whole class = number of girls / total number of students

Total number of students = number of boys in class + number of girls in class

= 7x + 8x = 15x

the part of the girls in the whole class = 8x/15x = 8/15

So 8/15 of the whole class is girls.



Answer 2

Answer:

8/15

Step-by-step explanation:

ratio= 7:8 :: boys:girls

7+8= 15

girls = 8/15