Question 1

Data sufficiency — Who is the uncle of L? Statements: A. P, brother of M, is father of L; M is father of S. B. R is father of L's cousin. Decide which statements are sufficient to determine the uncle of L.

Accepted Answer

Introduction / Context: The task is to identify L’s uncle using data sufficiency. We must determine whether each statement alone (or together) pins down a unique answer. Given Data / Assumptions: A: P and M are brothers; P is father of L; M is father of S. B: R is father of L’s cousin (ambiguous without further ties). Concept / Approach: An uncle is a brother of a parent (or spouse thereof, depending on convention). From A, we know P is L’s father and that P’s brother is M, i.e., M is paternal uncle of L. Step-by-Step Solution: 1) From A: Since P (male) and M (male) are brothers, and P is L’s father, M is L’s paternal uncle by definition.2) From B: Knowing only that R is father of L’s cousin does not reveal whose sibling R is, nor fix which side of the family produces the cousin. B is insufficient. Verification / Alternative check: Under A, there is no ambiguity: the uncle is M. Under B, R could be any cousin’s father through various family branches; multiple possibilities exist. Why Other Options Are Wrong: B alone: Too vague to identify a unique uncle. Either A or B: False, as B fails. Both not sufficient: False, A is already sufficient. A and B together: Redundant since A alone suffices. Common Pitfalls: Mistaking any cousin’s parent as automatically an uncle; overlooking that “cousin” may arise from either parent’s siblings. Final Answer: A alone is sufficient.

Question 2

Data sufficiency — How is P related to J? Statements: A. M is the brother of P and T is the sister of P. B. P's mother is married to J's husband, who has one son and two daughters. Identify which statements suffice to determine P's relation to J.

Accepted Answer

Introduction / Context: We are to fix the relationship of P to J using minimal information. As a data-sufficiency item, we focus on whether the statements force a unique relation without overbuilding the tree. Given Data / Assumptions: A: M is P’s brother; T is P’s sister (sibling set info; no mention of J). B: P’s mother is married to J’s husband, who has one son and two daughters. Concept / Approach: If “P’s mother is married to J’s husband” under standard monogamous interpretation, the only coherent reading is that J is P’s mother (J’s husband is P’s father, married to P’s mother). Thus P is the child of J. Step-by-Step Solution: 1) From B: J’s husband and P’s mother are a married pair, which identifies J as P’s mother.2) Therefore, P is related to J as child (gender of P not required).3) From A: Only sibling composition is known; no link to J, hence insufficient by itself. Verification / Alternative check: Any attempt to interpret B otherwise leads to polygamy or contradiction. The cleanest, standard reading is J = P’s mother. Why Other Options Are Wrong: A alone: No J mentioned; cannot conclude. Either A or B: False, because A fails. Both not sufficient: False, B alone suffices. A and B together: Redundant; B already suffices. Common Pitfalls: Overcomplicating the phrase “P’s mother is married to J’s husband”; the intended inference is straightforward in standard family-logic settings. Final Answer: B alone is sufficient (P is J’s child).

Question 3

A is B's sister. C is B's mother. D is C's father. E is D's mother. Then, how is A related to D?

Accepted Answer

A is the sister of B and B is the daughter of C. So, A is the daughter of C. Also, D is the father of C. So, A is the granddaughter of D.

Question 4

Pointing to a person, a man said to a woman, "His mother is the only daughter of your father." How was the woman related to the person ?

Accepted Answer

Daughter of your father — Your sister. So, the person's mother is woman's sister or the woman is person's aunt.

Question 5

A girl introduced a boy as the son of' the daughter of the father of her uncle. The boy is girl's

Accepted Answer

Daughter of uncle's father — Uncle's sister — Mother; Mother's son — Brother

Question 6

Pointing out to a lady, a girl said, "She is the daughter-in-law of the grandmother of my father's only son." How is the lady related to the girl ?

Accepted Answer

Girls's father's only son— Girl's brother. Daughter in law of girl’s grandmother can be their mother, or maternal uncle’s wife, i.e. aunt. So relation cannot be determined.

Question 7

P is the brother of Q and R. S is R's mother. T is P's father. Which of the following statements cannot be definitely true ?

Accepted Answer

P, Q, R are children of same parents. So. S who is R's mother and T, who is R's father will be mother and father of all three. However, it is not mentioned whether Q is male or female So, D cannot be definitely true.

Question 8

There are six persons A. B, C, D, E and F. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is the mother ?

Accepted Answer

D is father of A and grandfather of F. So, A is father of F. Thus. D and A are the two fathers. C is the sister of F So. C is the daughter of A. Since there is only one mother, it is evident that E is the wife of A and hence the mother of C and F. So, B is brother of A There are three brothers. So. F is the brother of C. Clearly, A is E's Husband.

Question 9

Pointing to a lady, a man said, "The son of her only brother is the brother of my wife." How is the lady related to the man ?

Accepted Answer

Brother of my wife — My brother.in-law; Son of lady's brother is the brother-in-law of the man. So lady's brother is man's father-in-law i.e., the lady is the sister of man's father-in-law.

Question 10

A woman introduces a man as the son of the brother of her mother. How is the man, related to the woman ?

Accepted Answer

Brother of mother — Uncle: Uncle's son — Cousin

Question 11

In a family, there are six members A, B, C, D, E and F. A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is E rel…

Accepted Answer

A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E. who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A. Clearly. E is the daughter of C.

Question 12

When Anuj saw Manish, he recalled, "He is the son of the father of my daughter." Who is Manish ?

Accepted Answer

Anuj's daughter's mother — Anuj's wife ; Anju's wife's father - Anuj's father-in-law; Father-in-law's son — Anuj's brother-in-law So, Manish is Anuj's brother-in-law

Question 13

Introducing a man, a woman said, 'He is the only son of my mother's mother." How is the woman related to the man ?

Accepted Answer

My mother's mother — My grandmother: My grandmother's only son — My maternal uncle. So, the woman is man's niece.

Question 14

A is father of C and D is son of B. E is brother of A. If C is sister of D, how is B related to E ?

Accepted Answer

A is father of C and C is sister of D. So, A is father of D. But D is son of B. So, B is the mother of D and wife of K Also. E is the brother of A So, B is the sister-in-law of E.

Question 15

There is a family of six persons A, B, C, D, E and F. They are Lawyer, Doctor, Teacher, Salesman, Engineer and Accountant There are two married couples in the family. D, the Salesman is married to the Lady Teacher. The Doctor is married to the Lawye…

Accepted Answer

C is the daughter-in-law of A who is the grandmother of F means C is the mother of F. But F is the son of B. So. B is C's husband. But C, the lawyer is married to the Doctor So. B is the Doctor. F, the Accountant will be the son of B and C. E is the unmarried Engineer So. the other mamed couple can be that of grandmother of F i.e, A and D. But D, the Salesman, is married to the Lady Teacher. So. D, the Salesman, is the grandfather of F. father of B and the husband of A, the Lady Teacher. Clearly, from the given data, the relation between E and F cannot be determined.

Question 16

Rahul's mother is the only daughter of Monika's father. How is Monika's husband related to Rahul ?

Accepted Answer

Clearly, the only daughter or Monika's father is Monika herself So, Rahul's mother is Monika Thus, Monika's husband is the father of Rahul.

Question 17

Pointing to a man in a photograph. Asha said. "His mother's only daughter is my mother." How is Asha related to that man ?

Accepted Answer

Asha's mother's mother is man's mother i.e.. A.sha's mother is man's sister or Asita is man's niece.

Question 18

Pointing to a photograph, a lady tells Pramod, "I am the only daughter of this lady and her son is your maternal uncle." How is the speaker related to Pramod's father

Accepted Answer

Clearly, the speaker's brother is Pramod's maternal uncle. So, the speaker is Pramod's mother or his father's wife

Question 19

Q's mother is sister of P and daughter of M. S is daughter of P and sister of T.How is M related to T?

Accepted Answer

Q's mother is sister of P & daughter of M.[sex of P and M are not clear] S is daughter of P and sister of T. [sex of P and T is not clear] M's children : Q's mother and P P's children :S[female] and T M is either Grandmother or Grandfather of T

Question 20

Pointing to an old man, Kailash said, "His son is my son's uncle." How is the old man related to Kailash ?

Accepted Answer

Kailash's son's uncle — Kailash's brother. So. the old man's son is Kailash's brother i.e., the old man is Kailash's father.

Blood Relation Test Questions