Each of P, Q, R, S, W, X, Y and Z has been married at most once. X and Y are…
GATE · 2017 · EC · Set 2 · General AptitudeModified — slightly modified from the official paper; see the solution
Each of P, Q, R, S, W, X, Y and Z has been married at most once. X and Y are married and have two children P and Q. Z is the grandfather of the daughter S of P. Further, Z and W are married and are parents of R. Which one of the following must necessarily be FALSE?
- A.
X is the mother-in-law of R
- B.
P and R are not married to each other
- C.
P is a son of X and Y
- D.
X cannot be married to Y
Attempted by 4 students.
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