Question

in a school 0.8 part of the srength of the school is boys and the number of girls is 150 .find the number of boys in school?

Answer 1

Let the total no. Of students be x
X-150=8/10of X
5X-750=4X
X=750
So no of boys are 750-150= 600

Answer 2

There are 600 boys in the school.

Given,

0.8 part of the strength of the school is composed of boys

There are 150 girls in the school

To Find,

Number of boys in the school

Solution,

Let the total strength of the school be 'x'

According to the question,

Boys → 0.8x

Girls → x - 0.8x

Girls → x(1 - 0.8)

Girls → 0.2x

Also, we know that there are 150 girls in the school

Therefore,

0.2x = 150

x = $\frac{150}{0.2}$

x = 750

Hence, there are 750 students in the school.

Boys → 0.8x

Boys → 0.8(750)

Boys → 600

Thus, there are 600 boys in the school.

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