Solving the Blood Relation Puzzle from the Family Picture

This question asks us to determine the relationship between Sneha and the girl in the family picture based on Sneha's statement: "She is my brother's wife's son's father's mother-in-law's only daughter." To solve this, we need to break down the statement step-by-step, starting from the end of the phrase "my brother's wife's son's father's mother-in-law's only daughter" and working our way back to Sneha.

Step-by-Step Analysis of the Relation Statement

Let's analyze the statement piece by piece:

• "my brother's wife": This refers to Sneha's sister-in-law.
• "my brother's wife's son": This is the son of Sneha's sister-in-law. This person is Sneha's nephew.
• "my brother's wife's son's father": The father of Sneha's nephew is Sneha's brother.
• "my brother's wife's son's father's mother-in-law": This is the mother-in-law of Sneha's brother. The mother-in-law of Sneha's brother is the mother of Sneha's brother's wife (Sneha's sister-in-law).
• "my brother's wife's son's father's mother-in-law's only daughter": This is the only daughter of the mother of Sneha's sister-in-law. If a mother has only one daughter, that daughter must be herself. So, the only daughter of the mother of Sneha's sister-in-law is Sneha's sister-in-law herself.

Combining these steps, the statement "She is my brother's wife's son's father's mother-in-law's only daughter" simplifies to "She is my brother's wife."

Therefore, the girl in the photo is Sneha's brother's wife.

Confirming the Relationship

Let's trace the relationship clearly:

• Sneha's Brother \(\rightarrow\) Sneha's Brother's Wife (Sister-in-law)
• Sneha's Brother's Wife's Son (Nephew)
• Sneha's Brother's Wife's Son's Father (Sneha's Brother)
• Sneha's Brother's Mother-in-law (Mother of Sneha's Brother's Wife)
• The only daughter of Sneha's Brother's Mother-in-law (Sneha's Brother's Wife)

So, the girl in the photo is indeed Sneha's brother's wife.

Based on the analysis, the girl in the photo is related to Sneha as her brother's wife.

Revision Table: Key Relationships

Additional Information: Understanding Blood Relations

Blood relation questions are common in reasoning tests. They require careful step-by-step analysis of the given statement to determine the direct or indirect relationship between two people. It's often helpful to draw a family tree or break down the statement into smaller, manageable parts as we did in this solution. Key relationships to remember include parents, siblings, children, grandparents, grandchildren, aunts, uncles, nieces, nephews, cousins, and in-laws.

For instance, 'mother-in-law' is the mother of one's spouse, 'brother-in-law' can be the brother of one's spouse or the husband of one's sibling, and 'sister-in-law' can be the sister of one's spouse or the wife of one's sibling.