Question

in a class of 40student 1/5of the total number of students like to study English and 2/5 of of the total number of student like to study mathematics and the remaining like to study science. (I) what fraction of the total number of student like to study science. do in copy​

Answer 1

Step-by-step explanation:

No. of students who like to study maths = 1/5 *20

= 4

No. of students who like to study English = 2/5*20

= 8

No. of students who like to study Science = 40-4+8

= 28

Answer 2

Total number of students = 40
Number of students who like to study English = 1/5*40
= 40/5
= 8
Number of students who like to study Mathematics = 2/5*40
= 2*40/5
= 80/5
= 16
Number of students who like to study Science = 40 - (8+16)
= 40 - 24
= 16
Fraction of students who like to study science = 16/40
= 2/5