# Question 0f812

Jun 6, 2016

a)# The Data is insufficient

#### Explanation:

The problem does not provide sufficient detail to eliminate all but one possibility.

If the grandfather in question is Usman's paternal grandfather, then his grandfather's son is Usman's father, and thus the man in the photograph is Usman's brother (or potentially Usman himself).

If the grandfather in question is Usman's maternal grandfather, then his grandfather's son is Usman's uncle, and thus the man in the photograph is Usman's cousin.

If we got creative with the family tree we could find other cases as well, however the above two already show that we cannot uniquely distinguish the relationship between Usman and the man in the photograph from only the given information.