Question

there are 30 pupils in a class.40per of the pupils are boys.how many boys are there in a class? explain step by step

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Answer 1

Answer:

total students = 30

let no. of boys be x

A.T.Q

40% of 30= x

$\frac{40}{100} \times 30 = x$

by algebra

We get

12 =x

and x is no. of boys so no. of boys are 12

Answer 2

Answer:

let the no of boys be y

total no of pupils are 30

so, 40/100 × 30

then , y = 12

so the no of boys is 12