Question

please answer all these questions please clear my doubts ​

Answer 1

● 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=28=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.

Answer 2

Answer:

Number of boys=7x

Number of girls =5x

We have

Number of boys=Number of girls +8

7x=5x+8

7x-5x=8(Transposing 5x to LHS)

2x=8

x=28=4

Therefore number of boys=7x4=28

number of girls=5x4=20

Total number of students in the class=28+20=48