Question

In a class the ratio of the number of boys and girls is9:5.Find the number of boys if the total number of students in the class is 42.

Answer 1

9x+5x=42
14x=42
x=3
no of boys=9×3=27

Answer 2

Answer:

Step-by-step explanation:

Let total number of boys is 9x

And total number of girls is 5x

According to the questions 9x + 5x =42

14x =42

x =42/14

X =3

So total number of boys = 9X= 9 x 3=27

Total number of girls =5X =5 x 3= 15