Question

In a school, number of boys are 160 more than the girls. If there are 45% girls in the school, find the number of girls in the school.​

Answer 1

answer

720

step by step explaination

Let the no. of girls be x

We are given that number of boys are 160 more than the girls

So, No. of boys = 160+x

Total students = 160+x+x=160+2x

Now we are given that 45 % girls in the school

So, 45\% (160+2x)=x45%(160+2x)=x

\frac{45}{100} (160+2x)=x

100

45

(160+2x)=x

7200+90x=100x7200+90x=100x

7200=10x7200=10x

720=x720=x

Hence the number of girls in the school are 720