Question

There are 126 students In a class the number of boys is three fourth the number of girls find the number of girls

Answer 1

72 is you required answer.

Answer 2

Hello friend,

Total Number of Students : 126.
Let the number of girls = x
So number of boys = (3/4)x.

As in a class, only boys and girls are there.
So Girls + Boys = Total
=> x + 3x/4 = 126
=>
$\frac{4x}{4} + \frac{3x}{4} = 126 \\ = > \frac{4x + 3x}{4} = 126 \\ = > 7x = 126 \times 4 = 504 \\ = > 7x = 504$
Therefore x = 72.
Therefore the number of girls = 72
Therefore the number of boys = 126 - 72 = 54.

Hope this answer helps you a lot.