Logical Reasoning & Analytical Ability – Blood relations

Assam Public Service Commission (APSC)

Combined Competitive Examination (CCE)

Preliminary Examination – General Studies Paper II (Objective Type, 200 Marks)

Topic: Logical Reasoning & Analytical Ability

Sub-Topic: Blood Relations

Blood Relations MCQs

MCQ 1

A is the brother of B. B is the mother of C. What is A’s relation to C?
A. Father
B. Uncle
C. Brother
D. Grandfather

Correct Answer: B
Explanation: A is brother of C’s mother → Maternal uncle.

MCQ 2

Pointing to a photograph, Ramesh says, “She is the daughter of my grandfather’s only son.” Who is she to Ramesh?
A. Sister
B. Cousin
C. Daughter
D. Aunt

Correct Answer: A
Explanation: Grandfather’s only son = Ramesh’s father → daughter = sister.

MCQ 3

A is the father of B. C is the sister of B. What is C to A?
A. Daughter
B. Niece
C. Sister
D. Aunt

Correct Answer: A
Explanation: B and C are siblings; A is father → C is daughter.

MCQ 4

If P is the son of Q, and Q is the brother of R, then R is the ___ of P.
A. Father
B. Uncle
C. Aunt
D. Grandfather

Correct Answer: C
Explanation: Q is brother of R → R is Q’s sister → Aunt of P.

MCQ 5

Introducing a man, a woman says, “He is the son of my mother’s only daughter.” Who is the man to the woman?
A. Brother
B. Son
C. Nephew
D. Cousin

Correct Answer: B
Explanation: Mother’s only daughter = the woman herself → her son.

MCQ 6

A is married to B. C is the brother of A. D is the wife of C. What is D to B?
A. Sister
B. Sister-in-law
C. Cousin
D. Aunt

Correct Answer: B
Explanation: C is A’s brother → D is A’s sister-in-law → also sister-in-law of B.

MCQ 7

X is the mother of Y. Y is the sister of Z. How is X related to Z?
A. Mother
B. Aunt
C. Grandmother
D. Sister

Correct Answer: A
Explanation: Y and Z are siblings; X is mother of Y → mother of Z.

MCQ 8

Pointing to a boy, a girl says, “He is the son of my father’s only son.” How is the boy related to the girl?
A. Brother
B. Cousin
C. Nephew
D. Son

Correct Answer: A
Explanation: Father’s only son = girl’s brother → his son = nephew ❌
But “boy” is son of her brother → nephew
✔ Correct Answer: C

MCQ 9

If A is the brother of B, B is the brother of C, and C is the sister of D, then how is A related to D?
A. Brother
B. Cousin
C. Uncle
D. Brother-in-law

Correct Answer: A
Explanation: All siblings → A is brother of D.

MCQ 10

A man says, “The woman I am pointing to is my wife’s mother.” Who is the woman to him?
A. Sister
B. Mother
C. Mother-in-law
D. Aunt

Correct Answer: C
Explanation: Wife’s mother = mother-in-law.

MCQ 11

P is the daughter of Q. Q is the sister of R. How is R related to P?
A. Uncle
B. Aunt
C. Father
D. Grandfather

Correct Answer: A
Explanation: Q is sister of R → R is uncle of P.

MCQ 12

If M is the father of N and N is the father of O, then M is the ___ of O.
A. Father
B. Uncle
C. Grandfather
D. Brother

Correct Answer: C
Explanation: Father of father = grandfather.

MCQ 13

A is the sister of B. B is the son of C. What is A to C?
A. Daughter
B. Niece
C. Sister
D. Aunt

Correct Answer: A
Explanation: A and B are siblings; B is son of C → A is daughter.

MCQ 14

Pointing to a lady, Rahul says, “She is my father’s brother’s wife.” Who is she to Rahul?
A. Aunt
B. Sister
C. Cousin
D. Mother

Correct Answer: A
Explanation: Father’s brother’s wife = aunt.

MCQ 15

X is the husband of Y. Y is the sister of Z. How is Z related to X?
A. Brother
B. Brother-in-law
C. Cousin
D. Uncle

Correct Answer: B
Explanation: Wife’s brother = brother-in-law.

MCQ 16

A is the son of B. B is the daughter of C. How is C related to A?
A. Father
B. Mother
C. Grandmother
D. Aunt

Correct Answer: C
Explanation: B is daughter of C → C is grandmother of A.

MCQ 17

P is the brother of Q. Q is the sister of R. How is P related to R?
A. Brother
B. Cousin
C. Uncle
D. Brother-in-law

Correct Answer: A
Explanation: P, Q, R are siblings → brother.

MCQ 18

A woman says, “My father-in-law’s only son is my husband.” Who is the woman referring to?
A. Herself
B. Sister-in-law
C. Daughter
D. Wife

Correct Answer: A
Explanation: Statement describes herself.

MCQ 19

If A is the mother of B and B is the brother of C, how is A related to C?
A. Mother
B. Aunt
C. Sister
D. Grandmother

Correct Answer: A
Explanation: A is mother of B → also mother of C.

MCQ 20

X is the son of Y. Y is the brother of Z. Z is the mother of W. How is X related to W?
A. Cousin
B. Brother
C. Nephew
D. Uncle

Correct Answer: A
Explanation: X and W are children of siblings → cousins.

MCQ 21

A is the sister of B. B is married to C. How is C related to A?
A. Brother
B. Brother-in-law
C. Cousin
D. Uncle

Correct Answer: B
Explanation: Sister’s husband = brother-in-law.

MCQ 22

If R is the only son of S and S is the sister of T, how is T related to R?
A. Aunt
B. Uncle
C. Father
D. Grandfather

Correct Answer: B
Explanation: S is sister of T → T is uncle of R.

MCQ 23

A is the brother of B. B is the sister of C. C is the daughter of D. How is A related to D?
A. Son
B. Nephew
C. Brother
D. Uncle

Correct Answer: A
Explanation: A, B, C are siblings → children of D → A is son.

MCQ 24

P is the mother of Q. Q is the wife of R. How is P related to R?
A. Aunt
B. Mother
C. Mother-in-law
D. Sister

Correct Answer: C
Explanation: Wife’s mother = mother-in-law.

MCQ 25

X is the daughter of Y. Y is the son of Z. How is Z related to X?
A. Father
B. Mother
C. Grandparent
D. Uncle

Correct Answer: C
Explanation: Z is parent of Y → grandparent of X.

MCQ 26

A man says, “She is my son’s wife.” Who is she to the man?
A. Daughter
B. Sister
C. Daughter-in-law
D. Niece

Correct Answer: C
Explanation: Son’s wife = daughter-in-law.

MCQ 27

If A is the brother of B and B is the father of C, how is A related to C?
A. Brother
B. Uncle
C. Cousin
D. Father

Correct Answer: B
Explanation: Father’s brother = uncle.

MCQ 28

P is the wife of Q. R is the sister of Q. How is R related to P?
A. Sister
B. Sister-in-law
C. Cousin
D. Aunt

Correct Answer: B
Explanation: Husband’s sister = sister-in-law.

MCQ 29

A is the father of B. B is the mother of C. How is A related to C?
A. Father
B. Uncle
C. Grandfather
D. Brother

Correct Answer: C
Explanation: Father of mother = grandfather.

MCQ 30

If X is the only daughter of Y and Y is the only son of Z, how is Z related to X?
A. Father
B. Mother
C. Grandparent
D. Uncle