# If a classroom contains 35 students, 2/5 of which are girls, then how many boys are in the class?

In the right triangle, the square of the largest side should be equal to the sum of the square of the other two sides.

## Answer: There are 21 boys in a class if a classroom contains 35 students, 2/5 of which are girls.

Let's find out the answer step by step.

**Explanation: **

Given:

Total students in a class = 35.

Number of girls = 2/5 of total students in a class

The remaining boys in the class = (1 - 2/5) = 3 / 5

So, we will calculate 3/5 of 35

No. of boys = (3/5) × 35

= 3 × 7 = 21

Therefore, there are 21 boys in the class.