A is the wife of B. B is the son of C. D is the daughter of A. How is D related to C?
- (a)Granddaughter
- (b)Daughter
- (c)Sister
- (d)Niece
Answer
Why
Correct — A.
Rule: fix the generations, then read the relation across them.
C → B: B is C's son.
A is B's wife, so D, the daughter of A, is the couple's daughter.
C → B → D: D is the daughter of C's son.
That makes D C's granddaughter → option (a).
Why the others are wrong
- (b)Daughter — Daughter skips a generation. D is the daughter of B, and B is C's son, so D sits two generations below C, not one.
- (c)Sister — Sister would put D in C's own generation. D is the daughter of C's son, two generations below C.
- (d)Niece — Niece is a sibling's daughter. D is the daughter of C's own son, not of C's brother or sister, so she is a granddaughter.
Concept
Blood-relation chains are solved by drawing generations: C at the top, B one level down as C's son, and A beside B as his wife. D, the daughter of A, goes one level below the couple.
A child of your child is a grandchild, and a female grandchild is a granddaughter. C's gender is never given, and it does not matter: D is C's granddaughter either way.
The stem calls D the daughter of A, not of B. The standard reading takes her as the couple's child, which places her in B's line and makes the answer granddaughter.
Key facts
- A son's daughter or a daughter's daughter is a granddaughter.
- A niece is the daughter of one's brother or sister.
- Granddaughter names D's side of the relation, so C's gender does not change the answer.
Study next
Common traps
- Stopping one generation short and answering Daughter
- Reading the question backwards as C's relation to D and looking for Grandfather or Grandmother
16 Sep 2025, 09:00, Reasoning Q.14 runs the same chain from the other end: A is the daughter of B, B is the son of C, D is the wife of C, and D is keyed Grandmother of A.
21 Sep 2025, 16:00, Reasoning Q.11 uses a wife to join two parents: A is the son of B, C is the wife of B, D is the son of C, keyed Brother.
Related PYQs
No directly related past PYQ was found.