Question

The number of students in a class is 60. The number of boys is seven-fifths of the number of girls. Find the number of boys in the class.

Answer 1

Solution -

Let the number of girls be x

So, the number of boys be 7x / 5

According to Question,

Given : Total no. of students = 60

x + 7x / 5 = 60

⇒ (5x + 7x) / 5 = 60

⇒ 12x = 300

⇒ x = 300 / 12

⇒ x = 25

Number of -

Girls = x = 25

Boys = 7x / 5 = 7 × 25 / 5

= 7 × 5 = 35

∴ There are 35 number of boys and 25 number of girls in the class

#Be Brainly

Answer 2

Step-by-step explanation:

Let the number of girls be x

So, the number of boys be 7x / 5

According to Question,

Given : Total no. of students = 60

x + 7x / 5 = 60

⇒ (5x + 7x) / 5 = 60

⇒ 12x = 300

⇒ x = 300 / 12

⇒ x = 25

Number of -

Girls = x = 25

Boys = 7x / 5 = 7 × 25 / 5

= 7 × 5 = 35

∴ There are 35 number of boys and 25 number of girls in the class