In a class of $40$ students $1 / 5$ of the total number of students like to study English, $2 / 5$ of the total number like to study Mathematics and the remaining students like to study Science. What fraction of the total numbers of students like to study Science.

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Solution

Students like English = $40 \times \frac{1}{5}$ = 8
Students like Mathematics = $40 \times \frac{2}{5}$ = 16
Total number of students = 40
So, students like to study Science = $40 - (8 + 16) = 16$
fraction of the total numbers of students like to study Science = $\frac{16}{40} = \frac{2}{5}$

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In a class of 40 students 1/5 of the total number of students like to study English, 2/5 of the total number like to study Mathematics and the remaining students like to study Science. What fraction of the total numbers of students like to study Science.

Students like English = 40×15 = 8 Students like Mathematics = 40×25 = 16 Total number of students = 40So, students like to study Science = 40−(8+16)=16fraction of the total numbers of students like to study Science = 1640=25

In a class of $40$ students $1 / 5$ of the total number of students like to study English, $2 / 5$ of the total number like to study Mathematics and the remaining students like to study Science. What fraction of the total numbers of students like to study Science.

Students like English = $40 \times \frac{1}{5}$ = 8
Students like Mathematics = $40 \times \frac{2}{5}$ = 16
Total number of students = 40
So, students like to study Science = $40 - (8 + 16) = 16$
fraction of the total numbers of students like to study Science = $\frac{16}{40} = \frac{2}{5}$