Question

in class of 40 pupils the number of girls is three -fifths of the number of boys .find the number of boys in the class​

Answer 1

Answer:

The number of boys in the class = 25

Step-by-step explanation:

given , the strenght of the class = 40pupils

let the no. of boys in the class = x

=> given, number of girls = (3/5)*x

so, we can say, x+ (3x/5) = 40

                  =>   (5x+3x)/5 = 40

                  =>           8x/5 = 40

                  =>                 x = 40*(5/8)

                  =>                 x = 5*5

                  =>                 x = 25

=> the number of boys in the class = 25