Question

A is B’s sister. C is B’s father. D is C’s mother. How is D related to A ?

• A. Uncle
• B. Sister
• C. Grandfather
• D. Grandmother

Hint:

Always draw the tree generation-by-generation.
Gen 1 (top): D (Female)
Gen 2 (middle): C (Male)
Gen 3 (bottom): A (Female) -- B (Gender unknown)
Since D is female and two generations above A, she must be the Grandmother. This avoids any gender confusion!

Answer 1

The Correct Option is D

Step 1: Establish A's relation to B.
A is B's sister, so A and B are siblings belonging to the same generation.
Step 2: Find C's relation to A.
C is B's father. Since A and B are siblings, C is also A's father.
Step 3: Find D's relation to A.
D is C's mother, meaning D is the mother of A's father. Therefore, D is A's Grandmother. \[ \boxed{\text{Grandmother}} \]