Blood relation questions check your understanding of family hierarchy and direction-based relations such as father, mother, brother, sister, uncle, aunt, nephew, niece, cousin, in-laws etc.
✅ KEY CONCEPTS (Quick Notes)
1. Direct Relations
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Father → पिता
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Mother → माता
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Brother → भाई
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Sister → बहन
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Son → पुत्र
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Daughter → पुत्री
2. Indirect Relations
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Uncle → चाचा/मामा
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Aunt → चाची/मामी
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Nephew → भतीजा/भांजा
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Niece → भतीजी/भांजी
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Cousin → चचेरे/ममेरे भाई-बहन
3. In-Laws
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Father-in-law → ससुर
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Mother-in-law → सास
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Brother-in-law → देवर/साला/जेठ
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Sister-in-law → ननद/देवरानी/जेठानी
4. Husband–Wife Relation
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A is wife of B → A = Female, B = Male
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A is husband of B → A = Male, B = Female
⭐ METHOD TO SOLVE QUESTIONS
Method 1: Use Signs
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Male → (+)
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Female → (–)
Method 2: Draw Family Tree
Method 3: Decode One Relation at a Time
🟦 MCQs + PYQs (EMRS / NVS / KVS)
Q1.
A is the brother of B. B is the mother of C. How is A related to C?
(Most asked type)
✓ Solution:
A → Brother of B
B → Mother of C
So A is: Maternal Uncle (Mama)
Answer: (B) Uncle
Q2.
If P is the father of Q and Q is the brother of R, then P is related to R as:
✓ Solution:
P → Father of Q
Q → Brother of R
So P is also Father of R
Answer: (A) Father
Q3. (PYQ–KVS)
Introducing a boy, Rina said, “He is the son of my mother’s daughter.”
How is the boy related to Rina?
✓ Solution:
Rina’s mother’s daughter = Rina herself (if no sister mentioned)
So boy = Rina’s son
Answer: (C) Son
Q4. (PYQ–NVS)
A woman introduces a man as “He is the husband of the granddaughter of my mother.”
The woman is the man's— ?
✓ Solution:
Granddaughter of her mother → Her own daughter
Husband of daughter's daughter → Son-in-law of her daughter → Her Granddaughter's Husband
So woman is: Grandmother-in-law
Answer: (D) Grandmother-in-law
Q5.
If A is the sister of B, and B is the father of C, then A is related to C as:
✓ Solution:
A = Sister of B
B = Father of C
So A = Aunt (Bua/Masi)
Answer: (B) Aunt
Q6. (PYQ EMRS 2023)
Pointing to a woman, Raj said, “She is the daughter of my grandfather’s only son.”
How is the woman related to Raj?
✓ Solution:
Grandfather’s only son = Raj’s father
Daughter of father = Raj’s sister
Answer: (A) Sister
Q7.
A says, “B is my father’s wife’s daughter.” How is B related to A?
✓ Solution:
Father’s wife → Mother
Mother’s daughter → Sister
Answer: (C) Sister
Q8.
If X is the niece of Y, then Y is:
✓ Solution:
Niece → Daughter of brother/sister
So Y is: Uncle or Aunt
Answer: (D) Uncle/Aunt
Q9 (NVS PYQ)
Introducing a man, a woman said: “He is the son of my mother’s only brother.”
The man is the woman’s:
✓ Solution:
Mother’s only brother = Mama
Mama’s son = Cousin (maternal)
Answer: (B) Cousin
Q10. (EMRS Level)
Pointing to a man, Seema said: “He is the father of my brother’s sister.”
How is the man related to Seema?
✓ Solution:
My brother’s sister = Seema herself
So man = Father of Seema
Answer: (A) Father
⭐ 10 Advanced MCQs (High Scoring)
Q11.
A’s mother is B’s sister and C’s daughter. How is C related to B?
✓ Solution:
A’s mother = B’s sister
So C = parent of both → Father/Mother
Answer: (D) Parent
Q12.
P is Q's brother. Q is R’s sister. R is S’s father.
How is P related to S?
✓ Solution:
P → Brother of Q
Q → Sister of R
So P is brother of R
R → Father of S
→ P is Uncle
Answer: (B) Uncle
Q13. (PYQ KVS)
Pointing to a man, Asha said, “He is the only son of my mother’s father.”
How is the man related to Asha?
✓ Solution:
Mother’s father → Maternal grandfather
Only son = Asha’s maternal uncle (Mama)
Answer: (C) Maternal Uncle
Q14.
If A is the son of B, B is the daughter of C, and C is the father of D, then A is D's:
✓ Solution:
A → Son of B
B → Daughter of C
C → Father of D
So A = Grandson of C
D = Child of C
→ A = Nephew / Niece of D (depending on gender)
Answer: (D) Nephew/Niece
Q15.
X says, “Y is the wife of my mother’s brother.”
Y is X’s:
✓ Solution:
Mother’s brother = Mama
His wife = Mami
Answer: (C) Aunt (Mami)
⭐ BLOOD RELATIONS – 50 ADVANCED MCQs WITH EXPLANATIONS
(EMRS / NVS / KVS / DSSSB / CTET Level)
🟦 SET–1: BASIC → MODERATE (15 MCQs)
Q1. (PYQ – KVS)
Pointing to a lady, Ravi said, “She is the daughter of my grandmother’s only son.”
How is the lady related to Ravi?
✔ Solution
Grandmother’s only son = Ravi’s father
Daughter of father = Sister
Answer: (C) Sister
Q2.
A’s mother is B’s sister. B is the son of C. C is the father of D.
How is A related to D?
✔ Solution
A’s mother = D’s sister
So A = D’s niece/nephew
Answer: (B) Niece/Nephew
Q3. (PYQ – NVS)
Pointing to a man, Sita said: “His only brother is the father of my daughter’s husband.”
How is the man related to Sita?
✔ Solution
Daughter’s husband → Son-in-law
Father of son-in-law → Co-father-in-law
Man is brother of that father → Brother-in-law of co-father-in-law →
→ Man = Brother of Sita’s son-in-law’s father
→ Great-uncle-in-law
Answer: (D) Relative from son-in-law’s side (Uncle-in-law)
Q4.
If A is the husband of B’s daughter, then B is A’s:
Answer: Father-in-law / Mother-in-law
Q5.
P is Q’s mother. Q is R’s father. R is S’s brother.
How is P related to S?
✔ Solution
P → Grandmother of R
S = R’s sibling → P = Grandmother
Answer: (B) Grandmother
Q6.
A is the father of B. C is the mother of D. D is the sister of B.
How is C related to A?
✔ Solution
D is B’s sister → C is B & D’s mother → C = A’s wife
Answer: (A) Wife
Q7. (PYQ – EMRS)
Introducing a woman, Rohan said: “She is the mother of my brother’s only sister.”
How is the woman related to Rohan?
✔ Solution
Brother’s only sister = Rohan himself
Woman = Rohan’s mother
Answer: (C) Mother
Q8.
A says, “B is the son of my wife’s sister’s mother.”
How is B related to A?
✔ Solution
Wife’s sister’s mother → Wife’s mother
→ B = wife’s brother → A’s brother-in-law
Answer: (D) Brother-in-law
Q9.
R is the son of P. Q is the sister of R. T is the mother of P.
How is T related to Q?
✔ Answer: Grandmother
Q10.
A’s son is the father of B’s father.
How is A related to B?
✔ Solution
A → grandfather of B’s father → great-grandfather of B
Answer: (C) Great-grandfather
Q11.
P’s father is the only son of Q’s father.
How is Q related to P?
✔ Solution
Only son → P’s father = Q’s father
So P & Q are siblings → If Q is male → Brother; female → Sister
Answer: (D) Brother/Sister
Q12. (PYQ – KVS)
Pointing to a woman, Arun said, “Her son’s sister is my mother.”
How is Arun related to the woman?
✔ Solution
Her son’s sister = mother of Arun → Woman = grandmother
Answer: (C) Grandmother
Q13.
A is the sister of B. B is the mother of C. D is the father of A.
How is D related to C?
✔ Answer: Grandfather
Q14.
A is the wife of B. C is the father of A.
How is C related to B?
✔ Answer: Father-in-law
Q15.
X says, “Y is the father of my mother’s brother.”
Y is X’s:
✔ Solution
Mother’s brother = Mama
→ His father = maternal grandfather
Answer: (A) Maternal Grandfather
🟩 SET–2: MODERATE → DIFFICULT (15 MCQs)
Q16.
A is B’s mother. C is A’s sister. D is C’s son.
How is D related to B?
✔ Solution
C = A’s sister → D = B’s cousin
Answer: (B) Cousin
Q17.
P is the grandson of Q. Q is the father-in-law of R.
How is R related to P?
✔ Solution
Q = father-in-law of R → R = daughter-in-law
Grandson P = R’s son
Answer: (A) Mother
Q18.
If D is the mother of E, E is the son of F, and F is the son of G, then D is G’s:
✔ Solution
D → Wife of F → Daughter-in-law of G
Answer: (C) Daughter-in-law
Q19. (PYQ – NVS)
Introducing a man, Seema said, “He is the son of the woman who is the mother of my husband.”
How is the man related to Seema?
✔ Solution
Mother of husband → Mother-in-law
Her son → Brother-in-law
Answer: (C) Brother-in-law
Q20.
A is B’s sister. B is C’s son.
How is C related to A?
✔ Answer: Mother/Father
Q21.
P says, “Q is the husband of my granddaughter.”
How is P related to Q?
✔ Answer: Grandparent-in-law
Q22.
X is the father of A. Y is the son of A. Z is the brother of Y.
How is X related to Z?
✔ Answer: Grandfather
Q23.
B’s son is the father of A.
How is B related to A?
✔ Solution
B → grandfather/grandmother
Answer: (A) Grandparent
Q24.
P is Q’s uncle and Q is R’s sister.
How is P related to R?
✔ Answer: Uncle
Q25.
A’s father is B’s son. C is the brother of B.
How is C related to A?
✔ Solution
B → grandparent
C → great-uncle
Answer: (D) Grand-uncle
Q26.
P is the brother of Q. Q is married to R. R is the daughter of S.
How is S related to P?
✔ Solution
R = sister-in-law
S = father/mother-in-law of Q → relative-in-law of P
Answer: (C) Relative-in-law
Q27.
A is brother of B. C is sister of A. D is mother of C.
How is D related to B?
✔ Answer: Mother
Q28. (PYQ–EMRS)
Pointing to a woman, a girl says: “She is the sister-in-law of my father’s only daughter.”
How is the woman related to the girl?
✔ Solution
Father’s only daughter = girl herself
Her sister-in-law = brother’s wife
Answer: (B) Brother’s Wife
Q29.
X’s daughter is Y’s mother. Y’s father is Z.
How is Z related to X?
✔ Solution
X → grandmother of Y
Z → husband of daughter
Answer: (C) Son-in-law
Q30.
C is A’s maternal uncle. B is the wife of C.
How is B related to A?
✔ Answer: Maternal Aunt (Mami)
🟥 SET–3: HIGH DIFFICULTY / CODED BLOOD RELATIONS (20 MCQs)
Q31.
If A + B means A is the father of B
A – B means A is the sister of B
A × B means A is the wife of B
What does A – B + C mean?
✔ Solution
A – B → A is sister of B
B + C → B is father of C
→ A = Aunt of C
Answer: (C) Aunt
Q32.
If P × Q means P is mother of Q
P + Q means P is brother of Q
P ÷ Q means P is son of Q
Find relation of P to R in:
P + Q ÷ R
✔ Solution
Q ÷ R → Q is son of R
P + Q → P is brother of Q → also child of R
Answer: (A) Son of R
Q33.
If A × B means A is husband of B and B – C means B is brother of C, find relation of A to C.
✔ Solution
A × B → A is husband
B – C → B brother of C → C is sibling
→ A = brother-in-law
Answer: Brother-in-law
Q34.
A + B means A is father of B
B × C means B is sister of C
Expression: A + B × C
✔ Solution
B × C → B sister of C
A + B → Father of B → also father of C
Answer: (A) Father
Q35.
If P – Q means P is daughter of Q
Q × R means Q is husband of R
What is P to R?
✔ Solution
Q × R → Q husband, R wife
P – Q → P daughter
Answer: (D) Daughter
Q36.
If A ÷ B means A is the son of B
A × B means A is the brother of B
Find relation in A ÷ B × C.
✔ Solution
B × C → B brother of C
A ÷ B → A son of B → C is uncle/aunt
Answer: (C) Uncle/Aunt
Q37.
If A is B’s father, B is C’s brother, C is D’s mother.
How is A related to D?
✔ Solution
A = grandfather
Answer: (A) Grandfather
Q38.
A’s father’s sister is B’s mother.
How is A related to B?
✔ Solution
A → child of Bua
B → child of same family
→ Cousins
Answer: (C) Cousins
Q39.
P’s father is Q’s brother and Q is R’s sister.
How is P related to R?
✔ Solution
Q = aunt of P
R = sibling
→ R = uncle/aunt
Answer: (B) Uncle/Aunt
Q40.
X is son-in-law of Y.
Y is mother of Z.
Z is sister of W.
How is W related to X?
✔ Answer: Brother-in-law
Q41.
A’s only son B is married to C. C is sister of D.
D’s wife is E.
What is E to A?
✔ Solution
A → parent of B
E → wife of D → sister-in-law of C → daughter-in-law’s sister-in-law
Answer: (D) No direct relation (Daughter-in-law’s sister-in-law)
Q42.
R is the son of P’s brother. Q is P’s wife.
How is Q related to R?
✔ Answer: Aunt
Q43.
A is mother of B. C is father of D.
B is sister of D.
How is A related to C?
✔ Answer: Wife
Q44.
P is the sister of Q. Q is the brother of R. R is the father of S.
How is P related to S?
✔ Answer: Aunt
Q45. (PYQ – KVS)
Pointing to a woman, a man said: “Her husband’s father is my father’s only son.”
Who is the woman to the man?
✔ Solution
Father’s only son = man himself
Woman’s husband’s father = man → husband = son → woman = daughter-in-law
Answer: (A) Daughter-in-law
Q46.
A is father of B. C is brother of A.
D is father of C.
How is D related to B?
✔ Answer: Great-grandfather
Q47.
P is maternal uncle of Q. Q is brother of R.
How is P related to R?
✔ Answer: Maternal Uncle
Q48.
If A + B means A is mother of B
A – B means A is sister of B
Expression: (A + B) – C
Relation of A to C?
✔ Solution
A + B → mother
B – C → B sister → C child of A
Answer: (A) Mother
Q49.
A is grandfather of B. B is father of C.
D is brother of C.
How is A related to D?
✔ Answer: Great-grandfather
Q50. (PYQ – EMRS)
Pointing to a boy, Meena said: “He is the son of my mother’s only son.”
How is the boy related to Meena?
✔ Solution
Mother’s only son = Meena’s brother
Boy = Meena’s nephew
