SSC CGL Preparation – Day 13

MCQs – Blood Relations

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Q1. Pointing to a man, Rina said, “He is the only son of my grandfather’s only son.” How is the man related to Rina?

a. Brother
b. Father
c. Uncle
d. Cousin

✅ Answer: a. Brother
Explanation:

• Grandfather’s only son = Rina’s father
• The man is the only son of Rina’s father → Her brother

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Q2. Introducing a man, a woman said, “He is the husband of my mother’s only daughter.” How is the man related to the woman?

a. Brother-in-law
b. Husband
c. Brother
d. Son-in-law

✅ Answer: b. Husband
Explanation:

• Woman’s mother’s only daughter = woman herself
• The man is the husband of the woman → Her husband

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Q3. A + B means A is the father of B

A – B means A is the sister of B
A * B means A is the mother of B
A ÷ B means A is the brother of B
Find the relation: P * Q + R

a. R is the father of P
b. R is the grandfather of P
c. P is the aunt of R
d. P is the mother of R

✅ Answer: d. P is the mother of R
Explanation:

• Q + R → Q is father of R
• P * Q → P is mother of Q
  → So P is the mother of R

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Q4. If A is the son of B and B is the brother of C, how is C related to A?

a. Uncle
b. Aunt
c. Grandfather
d. Cannot be determined

✅ Answer: d. Cannot be determined
Explanation:

• C can be either male or female → Could be uncle or aunt.

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Q5. Pointing to a photograph, Naman said, “He is the son of the only son of my grandfather.” How is the person in the photograph related to Naman?

a. Brother
b. Father
c. Cousin
d. Nephew

✅ Answer: a. Brother
Explanation:

• Grandfather’s only son = Naman’s father
• That person = son of Naman’s father = Naman’s brother

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Q6. If A is the brother of B, B is the sister of C, and C is the father of D, how is A related to D?

a. Uncle
b. Father
c. Grandfather
d. Brother

✅ Answer: a. Uncle
Explanation:

• A → B → C → D
• A is brother of C’s sister → A is C’s brother → D’s uncle

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Q7. Rahul is the son of Neha. Neha is the sister of Karan. Karan is the son of Meera. How is Meera related to Rahul?

a. Grandmother
b. Aunt
c. Mother
d. Sister

✅ Answer: a. Grandmother
Explanation:

• Rahul → Neha (mother) → Meera (Neha’s mother)
  → Meera is Rahul’s grandmother

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Q8. Pointing to a woman, Aman said, “She is the daughter of my father’s only daughter.” How is the woman related to Aman?

a. Niece
b. Sister
c. Aunt
d. Cousin

✅ Answer: a. Niece
Explanation:

• Father’s only daughter = Aman’s sister
• That woman is her daughter → Aman’s niece

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Q9. In a family, there are six members A, B, C, D, E and F. A and B are married couple. D is the only son of C. E is the brother of A and F is the daughter of B. Who is the mother of D?

a. C
b. E
c. B
d. A

✅ Answer: a. C
Explanation:

• D is son of C
  → C is mother of D

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Q10. If P + Q means P is the mother of Q; P ÷ Q means P is the brother of Q; P – Q means P is the sister of Q; and P × Q means P is the father of Q, then what does:

A × B – C + D mean?

a. A is maternal grandfather of D
b. A is paternal grandfather of D
c. A is uncle of D
d. A is brother of D

✅ Answer: b. A is paternal grandfather of D
Explanation:

• C + D → C is mother of D
• B – C → B is sister of C
• A × B → A is father of B
  → So A is grandfather of D