Question

The number of boys and girls in a class are in the ratio 7:5.the number of boys is 8 more than the number of girls. what is the total class strength. ​

Answer 1

Answer:

Step-by-step explanation:

Given ratio 7:5

So multiplying 8 with 7 we get 56 so it is the total no of boys

Therefore total no of girls 8X5=40

So 40 is the total no of girls

Therefore the total strength is 40+56=96

Answer 2

Let the number of boys be 7x and girls be 5x.

According to the question,

7x = 5x + 8

⇒ 7x – 5x = 8

⇒ 2x = 8

⇒ x = 8/2

⇒ x = 4

Therefore, Number of boys = 7×4 = 28

And, Number of girls = 5×4 = 20

Total number of students = 20+28 = 48