Question

the ratio of number of boys to number of girls in a class is 7 ratio 5 if there are 8 more boys than the girls the total number of the student in the class​

Answer 1

Step-by-step explanation:

Let the number of boys be 7x and that of girls be 5x.

According to the given condition, we have

Number of boys = Number of girls +8

⇒7x=5x+8

⇒7x−5x=8 ....[Transposing 5x to LHS]

⇒2x=8

⇒x=

2

8

=4

Therefore, number of boys =7×4=28 and number of girls =5×4=20

So, total number of children in the class =28+20=48.

Hence, the class strength is 48.

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