Question

there are 1200 students in a school ,if 780 are girls ,what is the percentage of the boys in the school​

Answer 1

Answer:

35%

Step-by-step explanation:

Total students = 1200

Number of girls = 780

Number of boys = 1200 - 780 = 420

Percentage of boys = $\frac{100 X 420}{1200}$

= 35%

So, there are 35% of boys in the school.

Answer 2

Answer:

total number of students in a school is 1200 .let it be T =1200

no of girls are 780 let it be G=780

no.of boys = B

B=T -G

b = 420

percentage of boys is equal to p= (B×100)÷ T

p = (420 ×100 ) / 1200

= 35 %