Solving the Blood Relation Puzzle

This question asks us to figure out the relationship between two individuals, P and S, based on the connections given within a family of five members. Let's break down the given information step-by-step to build the family structure.

Step-by-Step Analysis of Relationships

• P is Q's sister: This means P and Q are siblings, and P is female.
• R is Q's mother: This tells us that R is the mother of Q. Since P is Q's sister, R is also P's mother.
• S is R's father: This means S is the parent of R. Since R is the mother of P and Q, S is the maternal grandfather of P and Q.
• T is S's mother: This means T is S's parent. T is the great-grandmother of P and Q.

Constructing the Family Tree

Based on the above points, we can visualize the family structure:

• T is one generation above S.
• S is one generation above R.
• R is one generation above P and Q.
• P and Q are on the same generation level.

Let's represent the generations:

• Generation 1: T
• Generation 2: S (son of T)
• Generation 3: R (daughter of S)
• Generation 4: P, Q (children of R)

Determining P's Relation to S

We need to find out how P is related to S. From our analysis:

• P is the child of R.
• R is the daughter of S.

Therefore, P is the child of S's daughter. A child of a daughter is called a grandchild. Since P is identified as Q's sister, P is female. Thus, P is the grand-daughter of S.

Conclusion on P's Relationship to S

Following the connections, P is the child of R, and R is the daughter of S. This makes P the grand-daughter of S.

Revision Table: Key Relationships

Let's summarise the direct links we used:

Combining the inferences, we see that P is in the generation below R, and R is in the generation below S. Specifically, P is R's daughter, and R is S's daughter. This confirms that P is S's grand-daughter.

Additional Information on Blood Relation Questions

Blood relation questions are common in reasoning sections of competitive exams. They test your ability to understand and decipher complex relationships. Here are some tips:

• Always start by identifying the central person or the person whose relationship is being asked about.
• Draw a diagram or a family tree. Use symbols for different genders (e.g., circle for female, square for male) and lines to show relationships (e.g., vertical for parent-child, horizontal for siblings, double horizontal for spouse).
• Break down complex relationships into simpler steps. For example, 'father of mother' is 'maternal grandfather'.
• Pay close attention to the gender of the individuals when determining the final relationship (e.g., grandchild can be grandson or grand-daughter).
• Work backwards from the person whose relationship is being asked, or build the tree from the oldest generation downwards.

Practicing different types of blood relation puzzles will help you improve speed and accuracy.