Question

the ratio of the number of girls to that of boys in a school is 9:11 if the number of girls in the school is 540 find the number of boys in the school​

Answer 1

Ratio of the number of girls to that of boys in a school is 9 : 11

Let the number of girl be 9x & boys be 11x.

Number of girls = 540

9x = 540

x = 60

Number of boys = 11x = 11*60 = 660

Answer 2

Answer:

660 boys

Step-by-step explanation:

Let the number of girls be 9x and the number of boys be 11x

Let's put this into equation:

Number of girls

9x = 540

x= 540/9

x= 60

Now we use what x equals to find out  the amount of boys

Number of boys

11x

11 x 60

=660

Therefore there are 660 boys