All the seven members of a family A, B, C, D, E, F and G are travelling together. B is the son of C but C is not the mother of B. A and C are a married couple. E is the brother-in-law of C. D is the son of E who is married to G. F is the sister of B. In view of the above, consider the following statements:
A. There are 3 female members.
B. A is the father of F.
C. D is the husband of G.
D. B is the cousin of D.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A and D only
The clues are placed one by one on a family tree:
B is the son of C, and C is not B’s mother, so C is B’s father (male).
A and C are a married couple, so A is C’s wife and B’s mother (female).
F is the sister of B, so F is a daughter of A and C (female).
E is the brother-in-law of C, so E is a man related to C through marriage; he is taken here as A’s brother.
D is the son of E, and E is married to G, so G is D’s mother (female).
A. There are 3 female members. Correct. The women are A, F and G; B, C, D and E are men.
B. A is the father of F. Incorrect. A is C’s wife, so A is F’s mother; C is the father.
C. D is the husband of G. Incorrect. G is married to E, and D is E’s son, so D is G’s son.
D. B is the cousin of D. Correct. B’s parent and D’s parent are brother and sister (A and E), so B and D are cousins. If E were instead the husband of C’s sister G, the two would still be cousins.