Quantitative Aptitude – Students in a college have to choose at


Slot – 2 – Quantitative Aptitude – Students in a college have to choose at


Q. Students in a college have to choose at least two subjects from chemistry, mathematics and physics. The number of students choosing all three subjects is 18, choosing mathematics as one of their subjects is 23 and choosing physics as one of their subjects is 25. The smallest possible number of students who could choose chemistry as one of their subjects is?
  1. 19
  2. 21
  3. 22
  4. 20
Answer: 4

Solution:
As per question,
as per the question
So the minimum number students who could choose chemistry as one of their subjects is 20.

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