Question

in a class of 45 students , the number of girls is 7/8 of the boys.find the number of girls?

Answer 1

Answer:

21 girls

Step-by-step explanation:

Total students = 45

Let no of boys be x

So, no of girls is 7/8 multiplied by x

     = 7x/8

Add both the values

x + 7x/8 = 45

(8x + 7x)/8 = 45

15x = 360

x = 360/15

x = 24

So, no of boys is 24

No of girls = 7/8  multiplied by 24

             = 7 multiplied by 3

             = 21

Therefore, no of girls in class is 21