# The ratio of boys and girls 7:5. if the number of boys are 8 more than girl than what is the total number of student in class.

2
by audacious

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by audacious

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7:5 = x+8 : x

7x = 5x + 40

2x = 40

x = 20

therefore boys= 28

total no. of students = 20 + 28

= 48

7x = 5x + 40

2x = 40

x = 20

therefore boys= 28

total no. of students = 20 + 28

= 48

Let no.of boysbe 7x

no.of girls be 5x

According to the question

7x = 5x+8

⇒ 7x -5x = 8

⇒ 2x = 8

⇒ x =8/2

∴ x= 4

∴No.of Boys = 7x = 7(4) = 28

No.of Girls = 5x = 5(4) = 20