Question

In a class of 50 students, 25 like Maths and 15 like

Physics, 10 like both Maths and Physics. So find (a) How many

like Maths or Physics? (b) How many do not like any or the

subjects?​

Answer 1

Answer:

a. 30 b. 20

Explaination:

n S =50

nM =25

n P=15

nM Π P=10

n MUP=nP+nM-nMΠP

=25+15-10=30

Dont like any subject =nS -nMUP=50-30=20

Answer 2

Here is the answer hope it helps u