Question

Number of boys and girls in a school are in the ratio 7 : 5. If the number of boys is 84, the total number of students is

Answer 1

Answer:

Step-by-step explanation:

Let,

The number of boys = 7x and the number of girls =5x.

 

According to the condition,

 

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.

Answer 2

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