Question 1
Given:
A is B's father.
B is C's brother.
C is D's mother.
Find the minimum steps to deduce A's relation to D.
Step 1: A is B's father.
Step 2: B is C's brother → A is also C's father.
Since C is D's mother, A is D's grandfather.
Therefore, only 2 steps are needed.
Step 2: B is C's brother → A is also C's father.
Since C is D's mother, A is D's grandfather.
Therefore, only 2 steps are needed.