Nishi's grandfather is the brother of Om's father. Hemant is the son of Om. Based on these family relations, how is Hemant related to Nishi?

Introduction / Context:
This blood relation question involves three people across multiple generations: Nishi, Om and Hemant. You are told about the relationship between Nishi's grandfather and Om's father, and that Hemant is Om's son. The goal is to work out how Hemant is related to Nishi. These multi-generation questions require drawing a clear family tree and identifying whether a person is a cousin, nephew, or other relative.

Given Data / Assumptions:
• Nishi's grandfather is the brother of Om's father.• Hemant is the son of Om.• Grandfather means father of one of Nishi's parents.• Brothers share the same parents and are in the same generation.• No other complicating relations such as multiple marriages are mentioned.

Concept / Approach:
Let G be Nishi's grandfather and F be Om's father. We are told G is the brother of F. That means G and F are siblings. Nishi is a grandchild of G, while Om is a child of F. Because G and F are brothers, their children (Nishi's parent and Om) are first cousins. That makes Nishi and Om first cousins once removed or, in many exam-style problems, effectively treated as cousins across generations. Hemant is the son of Om, so from Nishi's viewpoint, Hemant is one more generation down, making him similar to a nephew. In typical reasoning terminology, the child of one's cousin is considered a nephew or niece, so Hemant is Nishi's nephew.

Step-by-Step Solution:
Step 1: Let G be Nishi's grandfather and F be Om's father.Step 2: G is the brother of F, so G and F share the same parents and are in the same generation.Step 3: Nishi is the grandchild of G, which means Nishi's parent P is a child of G.Step 4: Om is a child of F. Since G and F are brothers, P and Om are first cousins.Step 5: Nishi is the child of P, while Hemant is the child of Om.Step 6: Therefore, Nishi and Hemant are children of first cousins. In many reasoning questions, a child of your cousin is treated as your nephew or niece.Step 7: Since Hemant is male, he is Nishi's nephew.

Verification / Alternative check:
Draw three generations. At the top are great-grandparents of both Nishi and Hemant. In the middle are G and F as brothers. In the next generation down are P (child of G) and Om (child of F) as cousins. Finally, at the lowest level are Nishi (child of P) and Hemant (child of Om). Nishi is older than Hemant, being child of P, who is cousin of Om. That places Hemant one generational step below Nishi, matching the common role of nephew rather than cousin, which normally implies the same generation.

Why Other Options Are Wrong:
Brother: Brothers share the same parents; Nishi and Hemant do not.Son: Hemant is Om's son, not Nishi's son.Cousin: Strictly, Nishi and Om are closer to being cousins, while Hemant is one generation lower, more like a nephew to Nishi.Distant relative: The question gives a clear, relatively close family connection, not a vague one.

Common Pitfalls:
Many students quickly label Nishi and Hemant as cousins because they share ancestors, but they miss the additional generational gap. When one person is the child of your cousin, that person is more accurately thought of as your nephew or niece in the simplified terminology used in reasoning questions. Carefully stacking the generations helps prevent this mistake and leads you to the correct relation of nephew.

Final Answer:
Hemant is Nishi's nephew.