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 in the class ?

Answer 1

let number of boys be x
number of girls are 2/5 x
tot number of students = x + 2/5 x

according to question
x + 2/5 x =49
7/5 x = 49
x = 49*5/7
x =35
no. of boys are 35

Answer 2

let number of boys be x

number of girls are 2/5 x

tot number of students = x + 2/5 x

according to question

x + 2/5 x =49

7/5 x = 49

x = 49*5/7

x =35

no. of boys are 35