Question

the boys and girls in a school are in the ratio 9 is to 5 if the number of girls is 320 then find the total strength of the school

Answer 1

let the no. of girls be 5x then, no. of boys is 9x.

Now, no. of girls=320
~ 5x=320
~x=320/5
=64


substituting the value of x
9x= 9*64= 576


now, total strength is= no. of girls + no. of boys
= 320+576
=896...

solved..