Question

the ratio of number of boy and girl in a class is 4 ratio 3 find the number of girls if the total number of students in class is 42​

Answer 1

Step-by-step explanation:

Let the common number be x.

2: total number of students =

4x+3x=42...

7x=42....

x=6...

Therefore...no of girls =3x=3×6=18....... Ans

Answer 2

Answer:

Number of Girls = 18

Step-by-step explanation:

Boys : Girls = 4 : 3

Lets assume the number of boys as 4x

Lets assume the number of Girls as 3x

Therefore,

4x + 3x = 42

7x = 42

x = 42/7

x = 6

Number of boys = 4x

                           = 4 (6)

                           = 24

Number of Girls = 3x

                           = 3 (6)

                            = 18

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