UPSC Prelims 2017·CSAT·Logical Reasoning·Blood Relations

Consider the following: A+ B means A is the son of B. A - B means A is the wife of B. What does the expression P + R - Q mean?

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Last updated 23 May 2026, 3:31 pm IST
  1. AQ is the son of P
  2. BQ is the wife of P
  3. CQ is the father of PCorrect
  4. DNone of the above

Explanation

To solve this, we break down the expression P + R - Q step by step. 1. P + R means P is the son of R. 2. R - Q means R is the wife of Q. Since R is the wife of Q, Q must be the husband of R. Because P is the son of R, and Q is R's husband, Q must be the father of P. Therefore, the statement Q is the father of P is correct. Option C is the right answer.
Logical Reasoning: Consider the following: A+ B means A is the son of B. A - B means A is the wife of B. What does the expression P + R - Q
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