Question

If 36% of pupils in aschool are girla and the number of boys in the school is 816 , how many girls are there

Answer 1

Answer:

Step-by-step explanation:

let the total no. of students be x

no. of boys = 816

no of girls = 36% of x

no of boys in % = 64%

64% = 816

36% = ?

= 36 x 816 ÷ 64

= 29376 ÷ 64

= 459

Girls = 459.

Answer 2

Answer:

459 girls.

Step-by-step explanation:

$\text{ \% of girls = 36 \% }\\\\\text{Then. \% of boys = (100-36) \% = 64 \% }\\\\\text{No. of boys = 816}\\\\\text{Then, if the total no. of students is x,}\\\\64 \% \: of \: x = 816\\\\\implies \dfrac{64}{100} \times x = 816\\\\\\\implies x = \dfrac{816 \times 100}{64} = \boxed{1275 \: students}\\\\\\\therefore \text{No. of girls = x - no. of boys = 1275 - 816}\\\\= \large \underline{\boxed{\boxed{\bold{459 \: girls}}}}$

Hope it helps!