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sui generis
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Is there a generic way to solve these type of questions ?
OA: B
OA: B
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The TOTAL who voted YES for M = 500.
The number who voted YES for ONLY M = 200.
Thus, the number who voted YES for BOTH M AND R = 300.
Since the TOTAL number who voted YES for R=400, and 300 of these people voted YES for BOTH M AND R, the number who voted YES for ONLY R = 400-300 = 100.
Adding the values in the Venn diagram, we get:
Total number of YES voters = 200+300+100 = 600.
Since the total number of voters = 800, and 600 of these people noted YES for M, R, or both, the number who did NOT vote YES = 800-600 = 200.
The correct answer is B.
