Question

the number of boys and girls in a class are in the ratio is 7 ratio 5 the number of boys is 8 more than the number of girls what is the total strength

Answer 1

Let the number of boys is 7x and number of girls is 5x.

Their difference = 7x - 5x = 2x = 8

x = 8/2 = 4

Total strength = 7x + 5x = 12x = 12*4 = 48

Answer 2

Answer:

48

Step-by-step explanation:

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

According to the question,

7x = 5x + 8

⇒ 7x – 5x = 8

⇒ 2x = 8

⇒ x = 8/2

⇒ x = 4

Therefore, Number of boys = 7×4 = 28

And, Number of girls = 5×4 = 20

Total number of students = 20+28 = 48