Question

If D is the brother of B, how B is related to C ?

To answer this question which of the statements is/are necessary?
1. The son of D is the grandson of C.
2. B is the sister of D.

• A. Only $1$
• B. Only $2$
• C. Either $1$ or $2$
• D. Both $1$ and $2$ are required.

Answer 1

The correct option is D Both $1$ and $2$ are required.

Given: D is the brother of B.
From statement $1$, we can detect that D is son of C (son of D is the grandson of C).
From statement $2$, we can detect that B is 'Female' (sister of D).
Therefore, B is the daughter of C.

option D