Question

The ratio of boys and girls in a school is 7:5 . If the total number of students in the school is 480,find the number of boys​

Answer 1

Step-by-step explanation:

let no. be 7x and 5x

total no.=480

7x+5x =480

12x=480

x=40

Answer 2

Answer:

GIVEN :-

The ratio of boys and girls in a school = 7:5

Total number of students in the school = 480

LET,

Number of boys = 7x

Number of girls = 5x

===> 7x + 5x = 480

===> 12x = 480

===> x = 480 / 12

===> x = 40

:. Number of boys = 7x = 7 × 40 ===> 280

:. Number of girls = 5x = 5 × 40 ===> 200

HENCE,

Number of boys = 280

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