Math, asked by shuvodeepghatak, 4 months ago

the ratio of no of girls to no of boys in a class is 5:7 if there are 21 boys what are the no of girls

Answers

Answered by ranjeevrana61

1

Answer:

let rational number =x

No of girls =5x

No of boys=7x

A/Q

7x=21

x=21/7=3

no of girls =5x=5×3=15

Answered by buttuKP

0

Answer:

let x be the rational number

According to the given data?

no of girls=5x

no of boys=7x

by given data?

7x=21

x=21/7

x=3

hence,total no of girls is 5x=5(3)=15

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