Question

In a class of 40 atudents 2/4 of the total number of students like to study mathematics,1/5of the number like to study English and the remaining students like science.The number of students like to study science is. .

Answer 1

Answer:

2/4 like maths

so maths lover=(2/4) ×40 = 20.

eng lover = (1/5) ×40 = 8

total student are 40

then,

science lover are = 40-20-8

=12

Answer 2

Step-by-step explanation:

No. of total students= 40

No. of students who like Mathematics= 2/4 × 40= 20 students

No. of students who like English= 1/5 × 40= 8 students

No. of students who like Science= x students

Total students= No. of (Mathematics+English+Science)

40 students= 20 students+8 students+x students

40 students= 28 students+x students

40 students-28 students= x

12 students= x

No. of students who like Science= 12 students