Question

The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength ?

Answer 1

@AkashdeepDeb

Answer 2

Let
Boys = b
Girls = g


The number of boys and girls in a class are in the ratio 7:5
b:g=7:5
b/g=7/5
b5=g7
b5/5=g7/5
b=g7/5...............(1)
the number of boys is 8 more than the number of girls

b=g+8.............(2)
Put the value of b from (1) to (2)
g7/5=g+8
5*(g7/5)=5*(g+8)
g7=5g+40
g7-g5=40
2g=40
2g/2=40/2
g=20
Put the value of g in (2)
b=20+8
b=28
Boys are 28 and Girls are 20

Answer 3

As said in the bottom

Boys are 28 and Girls are 20

Answer 4

If this helped please close the question.

Answer 5

is it in total 48 students ?

Answer 6

28+20= 48 soo yea

Answer 7

Thanks

Answer 8

NP.