Question

the no of boys and girls in a class are in the ratio 5:7

Answer 1

Answer:

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

According to the question,

7x = 5x + 8

⇒ 7x - 5x = 8

⇒ 2x = 8

\Rightarrow x=\frac{8}{2}

⇒ x = 4

∴, Number of boys = 7×4 = 28

And, Number of girls = 5×4 = 20

Total number of students = 20+28 = 48