1.B5D means B is the father of D.
2.B9D means B is the sister of D.
3.B4D means B is the brother of D.
4.B3D means B is the wife of D.
Which of the following means F is the mother of K?
Answer: A
Correct answer: F3M5K
F3M makes F the wife of M, and M5K makes M the father of K. The wife of K’s father is K’s mother.
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A $ B means A is the father of B; A # B means A is the sister of B; A * B means A is the daughter of B and A @ B means A is the brother of B. Which of the following indicates that M is the wife of Q?
Answer: D
Q $ R → Q is the father of R
R @ T → R is the brother of T
Hence, → Q is the father of T
T * M → T is the daughter of M
Hence, → M is the mother of T
Hence, M is the wife of Q.
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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
Correct answer: Mother
A # D makes A the son of D, and C @ D makes C the wife of D. The wife of A’s father is A’s mother.
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Pointing to a girl Sandeep said, "She is the daughter of the only sister of my father." How is sandeep related to the girl?
Answer: B
Correct answer: Cousin
The only sister of my father is Sandeep’s aunt, and the girl is her daughter - so the two are cousins.
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Pointing to a boy in the photograph Reena said, "He is the only son of the only child of my grandfather." How Reena is related to that boy?
Answer: B
The boy in the photograph is the only son of Reena's grandfather's only son; i.e., the boy is the only son of Reena's father.
Hence, the boy is the brother of Reena or Reena is the sister of the boy.
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A * B means A is the sister of B
A $ B means B is the mother of A
A + B means A is the brother of B
A = B means B is the father of A.
Which of the following means M is the maternal uncle of N?
Answer: D
Correct answer: None of these
For M to be N’s maternal uncle, M must be male and a brother of N’s mother. Taking the options in turn: the first makes M’s father the brother of N’s sister, which settles nothing; the second makes Q both the father and the sister of others, a contradiction; and the third does put N’s mother Q beside M, but only as Q is the sister of M, which leaves M’s own sex open. Nothing establishes the relation, so the answer is none of these.
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If M x N means M is the daughter of N; M + N means M is the father of N; M % N means M is the mother of N and M - N means M is the brother of N then P % Q + R - T x K indicates which relation of P to K?
Answer: D
P % Q → P is the mother of Q
Q + R → Q is the father of R
R - T → R is the brother of T
Hence, → Q is the father of T
T x K → T is the daughter of K
Hence, → Q is the husband of K.
Therefore, P is the mother-in-law of K.
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If P + Q means P is the brother of Q; P x Q means P is the father of Q and P - Q means P is the sister of Q, which of the following relations shows that I is the niece of K?
Answer: B
Correct answer: K + Y x I - Z
K + Y makes K the brother of Y; Y × I makes Y the father of I; I – Z makes I the sister of Z, which shows I is female. A brother’s daughter is his niece, so I is K’s niece.
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Pointing towards a girl, Abhisek says, "This girl is the daughter of only a child of my father." What is the relation of Abhisek's wife to that girl?
Answer: B
Correct answer: Mother
The only child of my father is Abhisek himself, so the girl is his daughter - and Abhisek’s wife is therefore her mother.
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If A $ B means B is the father of A; A # B means B is the mother of A; A * B means B is the sister of A and A @ B means B is the husband of A, which of the following indicates that N is the grandmother of P?
Answer: D
Correct answer: None of these
Taking the options in turn: the first ends with N as the father of P’s mother, so N is a grandfather, not a grandmother; the second makes N the mother of P’s husband’s father, a grandmother-in-law rather than P’s own; and the third again makes N a father. None gives the relation asked for, so the answer is none of these.
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