Question

In a school, 5/8 of the students are boys .if there are 240 girls ,find the number of boys in the school .

Answer 1

Total students be x
Then Boys =5/8x
According to Q.
5/8x+240=x
240=x-5/8x
240=3/8x
240*8/3=x
640=x
Then boys =5/8*640
=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 class 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.