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WBCS Preliminary Examination 2018 — General Studies · Question 158 of 200

Q158
ReasoningVenn Diagrams & Set Theory
Point out the letter which represents Indians and historians but not politicians on the basis of these three circles.
  1. a.b
  2. b.f
  3. c.b and f
  4. d.b and g

Answer: (A) b

The required region must lie inside the circle for Indians and the circle for historians but outside the circle for politicians. In the figure of the question paper that region is marked 'b'. The region common to all three circles would represent Indian historians who are also politicians, and so is excluded.