Question

The ratio of boys and girl in a class in 7:5 if difference of both is 8.Find total students in that class​

Answer 1

Answer: 5x = 5 × 4 = 20.

Step-by-step explanation:

Let,

The number of boys = 7x and the number of girls =5x.

 

According to the condition,

 

7x = 5x + 8

2x = 8

x = 4

 

Therefore The number of boys = 7x = 7 × 4 = 28 and the number of girls =5x = 5 × 4 = 20.

 

Therefore total strength of the class = 28 + 20 = 48

Answer 2

Answer:

hope it helps you

Step-by-step explanation:

let, boy=7x

girls=5x

A.T.Q,

7x-5x=8

or, 2x=8

or,x=8/2

=4

number of boys=7x=7×4=28

number of girls=5x=5×4=20

total number of students=28+20=48