Question

in co Educational School 45% of the total student are girls if there are 440 boys in the school find the number of girls in the school​

Answer 1

Answer:

360

Step-by-step explanation:

Let T represent the Total Students

440 boys

45% Girls

.45T +440 = T

440 = .55T

440/.55 = T = 800 Total Students

800-440 = 360 girls

AND: .45(800) = 360

Answer 2

Answer :

Girls = 484

Given :

Girls = 45 %

Boys = 440

According to the question :

Let the total students be ' x '

Girls = 45 % of x

=> 45 / 100 × x

=> 45 / 100x

=> 9 / 20x

Boys = 440

To find the no. of. girls :

❍ Total = Girls + Boys

=> x = 9 / 20x + 440

=> 440 = 9 / 20x - x [ LCM = 100 ]

=> 440 = ( 9 × 5 / 20x × 100 ) - ( x / 100 × 1 )

=> 440 = 45x - x / 100

=> 440 = 44x / 100

=> 440 = 11 / 10

=> 11 / 10 × 440

=> 484

So, It's Done !!