Spandana is the sister of Raju. How is Raju's father's sister related to Spandana?

Introduction / Context:
This question checks your understanding of basic family terms like father, sister and aunt. You are told that Spandana and Raju are siblings and are asked to identify how Raju's father's sister is related to Spandana. The key idea is that siblings share the same parents, so any relation defined via a parent of one sibling also applies to the other sibling in the same way.

Given Data / Assumptions:
- Spandana is the sister of Raju. - Raju's father is also Spandana's father. - Raju's father's sister is being considered. - Standard meanings are used: father's sister is paternal aunt.

Concept / Approach:
Raju's father's sister is his aunt on his father's side. Since Spandana and Raju share the same father, this woman is also Spandana's paternal aunt. The relationship is the same for both siblings because it is defined one generation above through their common parent. So the question really asks you to name the relation between a girl and her father's sister, which is aunt.

Step-by-Step Solution:
Step 1: Note that Spandana is Raju's sister, so they share both parents (or at least their father) in a typical exam setting. Step 2: Identify Raju's father. This man is also Spandana's father. Step 3: Consider Raju's father's sister. She is the sister of their common father. Step 4: The sister of your father is called your paternal aunt. Step 5: Therefore, from Spandana's viewpoint, Raju's father's sister is her aunt.

Verification / Alternative check:
Imagine a family tree where the grandparents have two children: one is Spandana and Raju's father, and the other is his sister. On the next level, the father has two children, Spandana and Raju. The father's sister is in the generation above Spandana and Raju and is the sibling of their parent. That person is always an aunt, never a grandmother, sister or cousin. This consistent position in the tree confirms the relationship.

Why Other Options Are Wrong:
- Grandmother: A grandmother is the mother of a parent, not the sister of a parent. - Mother: The woman described is the father's sister, not his wife or partner. - Sister: A sister would share parents directly with Spandana, not be a sibling of her father. - Cousin: Cousins are children of aunts and uncles, not the aunts and uncles themselves.

Common Pitfalls:
Sometimes students mistakenly think that if a person is an aunt to one sibling, she might be something else to the other sibling. However, because both siblings share the same set of parents, any relationship described via a parent will be the same for both of them. Another common confusion is between grandmother and aunt, but remembering that grandmother is a parent of a parent while aunt is a sibling of a parent will keep things clear.

Final Answer:
Raju's father's sister is Spandana's aunt.