Question

90 students take mathematics, 72 take science in a class of 120 students. If 10 take
neither maths nor science then the number of students take both the subjects is​

Answer 1

Answer:

42

not sure about the answer.

Answer 2

Answer:

n(M)=90

n(U)=120

n(S)=72

n(MUS)=120-10=110

n(M intersect s) =90+72-110 = 52