Question

A picnic is being planned in a school for CLASS VIII. Girls are 60% of the total number of students and are 18 in number. The ratio of the number of girls to the number of boys in the class is​

Answer 1

Answer:

Let the number of boys be x, girls be y.

We need to find y:x.

The number of girls are 18 (given in q.)

And, 60%(x+y)=y. {Girls are 60% of the total number of students.}

We know that y=18

Thus, 60%(x+18)=18

60(x+18)/100=18

6x+108=180

6x=180-108

6x=72

x=72/6

x=12.

Ratio of y:x = 18:12 = 3:2.

HOPE THIS HELPS :D