Question

in a group of 50 students 20 like only math 15 like only science.if the number of students who do not like any of the both subjects is double of the students who like both subjects find number of students who like atmost one subjects​

Answer 1

Ans 45

Explanation :

Total students = 50

20 like only maths and 15 only science

Thus remaining 50 - 20 - 15 = 15

Among 15, 5 like both the subjects and 10 does not like any subject

Number of students like atmost one subject = 10 + 20 +15 = 45