(i) In a family of six persons A, B, C, D, E and F, there are two married couples.
(ii) D is grandmother of A and mother of B.
(iii) C is wife of B and mother of F.
(iv) F is the grand daughter of E.
How many male members are there in the family ?
Answer: D
Clearly, the sex of A cannot be determined.
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Pointing to a photograph Lata says, "He is the son of the only son of my grandfather." How is the man in the photograph related to Lata?
Answer: A
The man in the photograph is the son of the only son of Lata's grandfather i.e., the man is the son of Lata's father. Hence, the man is the brother of Lata.
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When Karan saw Manish, he recalled, "He is the son of the father of my daughter." Who is Manish ?
Answer: B
Karan 's daughter's mother — Karan 's wife ; Karan 's wife's father — Karan 's father-in-law; Father-in-law's son — Karan 's Brother-in-law
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A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. How many children does P have ?
Answer: B
Q is the son of R but R is not the mother. So, R is the Father of Q. P is married to R
So, P is the wife of R and the mother of Q, X is the daughter of P and hence of R and so she is the Sister of Q, Y is the brother of R and Z is the brother of P.
Clearly, Q is the son of P and X is the daughter of P. So, P has two children.
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P + Q means P is the brother of Q; P - Q means P is the mother of Q and P * Q means P is the sister of Q. Which of the following means M is the maternal uncle of R ?
Answer: C
M is the maternal uncle of R means M is the brother of the mother (say K) of R i.e. M + K - R.
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A woman introduces a man as the son of the brother of her mother. How is the man, related to the woman ?
Answer: B
Brother of mother — Uncle: Uncle's son — Cousin
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If D is the brother of B, how B is related to C? To answer this question which of the statements is/are necessary?
The son of D is the grandson of C.
B is the sister of D.
Answer: D
Given: D is the brother of B.
From statement 1, we can detect that D is son of C (son of D is the grandson of C).
From statement 2, we can detect that B is 'Female' (sister of D).
Therefore, B is daughter of C.
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Pointing to a photograph. Bajpai said, "He is the son of the only daughter of the father of my brother." How Bajpai is related to the man in the photograph? |
Answer: D
The man in the photo is the son of the sister of Bajpai. Hence, Bajpai is the maternal uncle of the man in the photograph.
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If A $ B means A is the brother of B; B * C means B is the son of C; C @ D means C is the wife of D and A # D means A is the son of D, how C is related to A?
Answer: D
A $ B → A is the brother of B
B * C → B is the son of C
Hence, → A is the son of C
C @ D → C is the wife of D
Hence, → C is the mother of A.
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A's son B is married with C whose sister D is married to E the brother of B. How D is related to A?
Answer: B
Since E is the brother of B
Therefore, A is the father of E
but D is the wife of E.
Hence, D is the daughter-in-law of A.
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