Question

in a class of 40 students the number of girls is 1 ratio 3 of the number of boys find the number of boys​

Answer 1

Answer:

10

Step-by-step explanation:

let the no.of boys be X

then,the no. of girls are X÷3

X+X/3=40

(3X+X)/3 =40

4X=120

X=30

Answer 2

Answer:

Maybe 30.

Step-by-step explanation:

Let the ratio be 1r and 3r

their sum would be = 4r

Now 4r= 40 then r = 40/ 4= 10

Number of boys = 3× 10= 30.