Question

If Z is the brother of X, how X is related to Y?

To answer this question which of the statements is/are necessary?

1. The son of Z is the grandson of Y.

2. X is the sister of Z.

• A. Only 1
• B. Only 2
• C. Either 1 or 2
• D. Both 1 and 2 are required
• E. Cannot be determined

Answer 1

The correct option is D

Both 1 and 2 are required

Given: Z is the brother of X.

From statement 1, we can detect that Z is son of Y (son of Z is the grandson of Y).

From statement 2, we can detect that X is 'Female' (sister of Z).

Therefore, X is daughter of Y, which can be determined using both the statements.