Question

The ratio of boys and girls in a class is 5:3
Find the percentage of boys and girls in that
class.​

Answer 1

Answer:

Let the number of boys and girls be 5x and 3x.

Number of those who are passed in first class

=20%of5x+60%of3x

=(

100

20

×5x)+(

100

60

×3x)

=x+

5

9x

=

5

14x

Then, required percentage

=(

5

14x

×

(5x+3x)

1

×100)%

=

5

14x

×

8x

100

%

=35%

Answer 2

Solution;

Ratio = 5:3

Let boys be 5x and girls be 3x

Total students = 5x + 3x = 8x

Boys = 5x × 100/8x

= 62.5%

Girls = 100 - 62.5

= 37.5%

Hope it Helps uh.....

Have a Great Day.....