Question

in class 40 pupils the number of girls is three-fifths of the number of boys. find the number of boys in the class​

Answer 1

Answer: 25

Step-by-step explanation:

Thank you for asking the question!

There is a class with 40 pupils, three fifth are the girls. so the number of boys will be calculated as follows.

Suppose Total pupils= 40

               Number of girls= 3\5       

               Number of boys= ?

According to a equation:

                y + 3 y\5 = 40

                        8 y\5 = 40

                               = 40*5\8

                               = 25

Hence the total number of boys are 25.

Hope it helps.

Answer 2

Answer:

• Let us assume there are X number of boys
• Now, according to the question the no.of girls is 3/5 of X
• Now total no.of students is no.of girls+no.of boys
• =3/5X + X=40
• Therefore total no.of students=8x/5 which is 40
• By solving for X, X=25
• Therefore there are 25 boys