Question

55% of the student in a school or girl if the number of boys is 1800 find the total history of the world

Answer 1

Let the total no. of students be a

Percentage of girls = 55

Percentage of boys = 100 - 55 = 45

According to question

45% of a = 1800

=> 45a/100 = 1800

=> a = 180000 / 45

=> a = 4000



Total number of students = 4000

Answer 2

hiii!!!

here's ur answer...

the percentage of girls in the school is 55%, therefore percentage of boys in the school is

= 100-55

= 45%

let the total number of students in the school be x.

given that the no. of boys is 1800

therefore 45% of x = 1800

→ 45/100 of x = 1800

→ x = 1800/1×100/45

→ x = 40×100

→ x = 4000

hence the total no. of students in the school is 4000.

hope this helps..!