Question

In a school,5/8 of the student are boys.if there are 240 girls,find the no. Of boys in the school

Answer 1

5/8 are boys

girls = 1 - 5/8 = 3/8

let total students be x

3/8 of x = 240

x = 640

total students = 640

boys = 640 - 240 = 400

Answer 2

Answer: 400 Boys

Explanation:

Given,

Fraction of boys = 5/8

No. of Girls in class = 240

To find,

Total no. of Boys = ?

Let the number of Boys is X

                    Fraction of girls = 1 - 5/8 = 3/8

So, girls = 3/8 × x

It means, Faction of Girls = 3/8

240 = 3/8 × x

x = 240 × 8 /3 = 640

                   Number of boys = 5/8 of 640

= 5/8 × 640

= 400

Therefore, Total no. of boys in a school are 400.

Explanation:

In this question, we have to find Total no. of Boys in school. Girls are given as 240. And the faction of Boys is given as 5/8.

First of all, we get the Fraction of Girls. Which is 3/8. After that, We multiply 3/8 with 640.

Then Finally, we get 400.