Question

the average age of a class is 15.8 . The avereage age of the boys is 16.5 years and that of girls is 15.4 .What is the ratio of boys to girls in the class?​

Answer 1

Answer:2:3

Step-by-step explanation:

Let the no. Of boy be x

And that of girls be y

So, sum of boy's age =16.5x

And girl's age = 15.4y

A/q

15.8(x+y)=16.4x+15.4y

15.8y-15.4y=16.4x-15.8x

0.4y=0.6x

X/y=2/3

2:3