If X says 'Y's mother is the only daughter of my mother,' what is the relationship between X and Y?
Answer: B
X's mother's only daughter = X (if X is female) or X's sister. But Y's mother = X's mother's only daughter means Y's mother is X. Therefore, X is Y's father.
Q.2Medium
A man has a brother. The brother has a son. That son marries a woman. They have a daughter. How is that daughter related to the man?
If P is the mother of Q, R is the father of S, Q and R are married, then what is the relationship between P and S?
Answer: A
P is mother of Q. Q and R are married. R is father of S. S is child of Q. P is mother of Q, so P is mother-in-law of R and mother-in-law/grandmother of S's perspective means mother-in-law of Q's spouse R.
Q.4Medium
Looking at a portrait, Ravi says, 'The father of this person is the only son of my grandfather.' What is the relationship between Ravi and the person in the portrait?
Answer: C
Ravi's grandfather's only son = Ravi's father. That person's father = Ravi's father. So that person is Ravi's brother.
Q.5Medium
A woman introduces a man as the son of the brother of her mother. What is the relationship between the woman and the man?
Answer: A
Woman's mother's brother = Woman's uncle. That uncle's son = Woman's cousin. The man is the woman's cousin.
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Q.6Medium
If A + B means A is the father of B, A - B means A is the mother of B, and A × B means A is the brother of B, then in the expression M + N - O × P, how is M related to O?
Answer: A
M + N = M is father of N. N - O = N is mother of O. O × P = O is brother of P. So M is father of N, N is mother of O, therefore M is grandfather of O.
Q.7Medium
A man says to a woman, 'Your mother's husband's mother is my mother.' What is the relationship between the man and woman?
Answer: A
Woman's mother's husband = Woman's father. Woman's father's mother = Woman's paternal grandmother = Man's mother. So the man is woman's uncle.
Q.8Medium
In a family, there are two couples. One couple has three sons, and each son has two daughters. The other couple has two sons, and each son has one daughter. How many female members are there in total?
Answer: B
First couple: 3 sons × 2 daughters = 6 daughters. Second couple: 2 sons × 1 daughter = 2 daughters. Total = 6 + 2 = 8 female members.
Q.9Medium
A person has two wives. From the first wife, he has three sons and two daughters. From the second wife, he has one son and three daughters. His eldest son from the first wife has two sons. What is the total number of grandchildren?
Answer: A
Only mentioned grandchildren are the two sons of the eldest son from the first wife. Total grandchildren mentioned = 2. Other children may or may not have children.
Q.10Medium
In a family gathering, a man points to another and says, 'He is the only son of my wife's mother.' What is the relationship?
Answer: B
Man's wife's mother's only son = Man's wife's uncle or Man's wife's brother (most likely). If only son, then wife's brother. The man is pointing to his brother-in-law.
Q.11Medium
Deepa's father has a son from his first marriage. Deepa's mother's only son is the step-brother of that boy. How is Deepa related to that boy?
Answer: B
Deepa's mother's only son is Deepa's brother. He is the step-brother of the boy from father's first marriage, meaning they share the same father but different mothers. Therefore, Deepa is the half-sister of that boy.
Q.12Medium
Using the symbols: @ means 'is the father of', # means 'is the mother of', means′isthebrotherof′, R, then how is P related to R?
Answer: A
P @ Q means P is father of Q. Q $ R means Q is brother of R. Therefore, P is the father of both Q and R, so P is the father of R.
Q.13Medium
A man says, 'The boy playing football is the grandson of my father's only brother.' How is the man related to that boy?
Answer: A
The man's father's only brother is the man's uncle. The man's uncle's grandson would be the man's cousin's son or the man's own son. Given the context, the boy is the man's son.
Q.14Medium
Pointing to a woman, Ramesh says, 'She is the mother of the only child of my mother's mother.' What is the relation between Ramesh and that woman?
Answer: B
Ramesh's mother's mother is his grandmother. The grandmother's only child is Ramesh's mother. The woman is the mother of that only child, so she is Ramesh's mother.
Q.15Medium
Neha's mother is the wife of Neha's father. Neha's father has a daughter who is not Neha's sister. How is that daughter related to Neha?
Answer: A
Neha's father's daughter who is not Neha's sister can only be Neha herself, as the question implies a paradox that resolves when we recognize the daughter is Neha.
Q.16Medium
Using the code: P * Q means P is the mother of Q, P # Q means P is the sister of Q, P & Q means P is the brother of Q. If A * B # C & D, how is A related to D?
Answer: A
A * B means A is the mother of B. B # C means B is the sister of C. C & D means C is the brother of D. Therefore, A is the mother of B, C, and D.
Q.17Medium
A couple has three daughters. The youngest daughter is Priya. Priya's sister Anjali is married to Vikram. Vikram's brother Arjun is married to Priya. How are Anjali and Arjun related?
Answer: D
Arjun is Vikram's brother. Vikram is married to Anjali. Therefore, Arjun is the brother-in-law of Anjali, and Anjali is the sister-in-law of Arjun.
Q.18Medium
Asha says, 'The man who just walked in is the only son of my grandfather's only son.' How is Asha related to that man?
Answer: A
Asha's grandfather's only son is Asha's father. That man is the only son of Asha's father, which means that man is Asha's brother. If he's presented as 'just walked in,' the correct answer is sister (Asha is female).
Q.19Medium
If @ means 'is the son of' and # means 'is the daughter of', and P @ Q # R, then how is P related to R?
Answer: A
P @ Q means P is the son of Q. Q # R means Q is the daughter of R. Therefore, P is the son of Q, and Q is the daughter of R, making P the grandson of R.
Q.20Medium
Ritu has a brother who is 3 years older. Ritu's mother has a sister. Ritu's mother's sister's son is 5 years younger than Ritu. What is Ritu's mother's sister's son's relationship to Ritu's brother?
Answer: A
Ritu's mother's sister is Ritu's aunt. Her son is Ritu's cousin. Therefore, he is also the cousin of Ritu's brother.
