A is B’s mother. C is B’s father. How is C related to A?
- (a)Husband
- (b)Brother
- (c)Son
- (d)Cousin
Answer
Why
Correct — A.
Rule: link the two statements through the person they share, B.
A is B's mother.
C is B's father.
A and C are B's two parents, a couple, so C is A's husband → option (a).
Why the others are wrong
- (b)Brother — Brother would need A and C to share parents. Nothing says so: the only link given is that they are B's mother and father.
- (c)Son — Son would put C a generation below A, making C B's sibling. C is B's father, a generation above B and level with A.
- (d)Cousin — Cousin needs a link through an aunt or uncle, and the statements give none. They tie A and C only as B's mother and father.
Concept
Two-statement blood relations come down to the person both statements share. Here that is B, and A and C are each defined through B.
Draw it: A (female) and C (male) on one level, B one level below. The mother and father of the same child sit side by side as a couple, so C is A's husband and A is C's wife.
Strictly, being the two parents of one child does not prove a marriage. The question gives no other link, the key reads C as A's husband, and none of the other options fits.
Key facts
- A child's mother and father sit on the same generation line of a family tree.
- C is male (a father) and A is female (a mother), so the pair reads as husband and wife.
- Brother, son and cousin are blood relations the two statements never give.
Study next
Common traps
- Answering the reverse question, how A is related to C, instead of how C is related to A
- Choosing Brother because A and C sit on the same generation line
21 Sep 2025, 16:00, Reasoning Q.11 builds on a couple the same way: A is the son of B, C is B's wife and D is C's son, so A is keyed as D's Brother.
18 Sep 2025, 12:30, Reasoning Q.22 asks for a child's relation to a parent: P and R are both siblings of Q and S is P's father, so R is keyed as S's Daughter.
Related PYQs
No directly related past PYQ was found.