Question

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

Answer:

ANSWER

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

According to the given condition, we have

Number of boys = Number of girls +8

⇒7x=5x+8

⇒7x−5x=8 ....[Transposing 5x to LHS]

⇒2x=8

⇒x=

2

8

=4

Therefore, number of boys =7×4=28 and number of girls =5×4=20

So, total number of children in the class =28+20=48.

Hence, the class strength is 48.

Answer 2

Answer:

48 students

Step-by-step explanation:

no of boys =7x

no. of girls=5x

so,

7x=5x+8

2x=8

x=4

therefore, no. of girls=5*4 =20

number of boys =7*4 =28

total strength =28+20

=48

therefore their total 48 students in the class