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

Open in App

Solution

Let the no. of girls be 5x
No. of boys=7x
According to the question
5x+8=7x
7x-5x=8
2x=8
x=8/2
x=4
No. of girls=54=20
no. of boys=74 or 5*4+8=28
Hence the total strength of the class is 20+28=48

Suggest Corrections

Similar questions

Q. The number of boys and girls in a class are in ratio

7 : 5

. The number of boys is

8

more than the number of girls. What is the total class strength?

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

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 the girls. Find the total strength of the class.

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. The total class strength is

(a) 56

(b) 52

(d) 36

Join BYJU'S Learning Program

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

Let the no. of girls be 5x No. of boys=7x According to the question 5x+8=7x 7x-5x=8 2x=8 x=8/2 x=4 No. of girls=5*4=20 no. of boys=7*4 or 5*4+8=28 Hence the total strength of the class is 20+28=48

Let the no. of girls be 5x
No. of boys=7x
According to the question
5x+8=7x
7x-5x=8
2x=8
x=8/2
x=4
No. of girls=54=20
no. of boys=74 or 5*4+8=28
Hence the total strength of the class is 20+28=48