Question

In a class there are 49 students. If the number of girls is 2 / 5 of the number of boys. Find the number of boys.

Answer 1

let the number of boys be 'x'.
then the number of girls = 2/5 of x
= 2x/5
total number of students = 49
i.e., x+2x/5=49
(5x+2x)/5=49
7x/5=49
7x=49*5
x=(49*5)/7
x=35.

Answer 2

Answer:

let the number of boys be 'x'.

then the number of girls = 2/5 of x

= 2x/5

total number of students = 49

i.e., x+2x/5=49

(5x+2x)/5=49

7x/5=49

7x=49*5

x=(49*5)/7

x=35.

Step-by-step explanation: