Question

The number of boy's and girl's in a class are in the ratio 7/5. The number of boy's is 8more than the number of girls . What is the total class strength?

Answer 1

Answer:

The number of boys = 7x , and

the number of girls =5x.

⇒7x = 5x + 8

⇒2x = 8

⇒x = 4

 

Therefore

The number of boys = 7x = 7 × 4 = 28

and the number of girls =5x = 5 × 4 = 20.

 

Therefore total strength of the class = 28 + 20 = 48

Step-by-step explanation:

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