Aerospace Engineering > GATE 2017 > Blood Relations
Each of P. Q. R. S. W. X. Y . 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
Q cannot be married to R

Explanation

Correct : d

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