) In a class 12, students study mathematics
(M), 18 study Chemistry(C) and 21 study
Physics(P). Five study M and C. Three study
all the three subjects. How many students
are there in the class who study either M
or Por C?
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Answer:
chemistry - 18
physics - 21
maths or chemistry - 3
No.of students = 18+21+3 = 42
I think answer is 42
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