Question

in a class of 40 students, 2/5 of the total number of students like to study mathematics, 1/5 of the number like to study English and the remaining students like to study science. The number of students like to study science is_____​

Answer 1

To Find:-

• The number of students like to study science

Given:-

▪ Total number of students = 40

▪ ⅖ of the total number of students like to study mathematics

▪ ⅕ of the number like to study English

Solution:-

• No. of students like to study mathematics:-

$\implies40 \times \dfrac{2}{5}$

$\implies8 \times 2$

$\implies16$

16 students like to study mathematics.

• No. of students like to study English

$\implies40 \times \dfrac{1}{5}$

$\implies8 \times 1$

$\implies8$

8 students like to study English.

step-by-step explanation:

Let the unknown number of students like to study science be x

⟹ x + 16 + 8 = 40

⟹ x + 24 = 40

⟹ x = 40 - 24

⟹ x = 16

So, 16 students like to study science.