A * B means A is the mother of B , A % B means A is the father of B , A # B…
2019
A * B means A is the mother of B ,
A % B means A is the father of B ,
A # B means A is the sister of B ,
Then which of the following relations shows that X is the daughter of Z?
Answer: D. Z % X * Y — Solution: Analyze the relations as follows. 'A * B' means: A is the mother of B. 'A % B' means: A is the father of B. 'A # B' means: A is the sister of B.…
- A.
Z # X * Y
- B.
Z # X % Y
- C.
Z * Y % X
- D.
Z % X * Y
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Correct answer: D
Solution: Analyze the relations as follows.
'A * B' means: A is the mother of B.
'A % B' means: A is the father of B.
'A # B' means: A is the sister of B.
Consider the relation Z % X * Y.
First part: Z % X ⇒ Z is the father of X. This shows that X is Z's child.
Second part: X * Y ⇒ X is the mother of Y. This establishes that X is female.
Together, X is Z's child and X is female ⇒ therefore X is Z's daughter.
Conclusion: Z % X * Y shows that X is the daughter of Z.
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