Pariksha SaathiFamily Tree (Blood Relations) Questions with Solutions
This is Blood Relations at a larger scale — instead of tracing one relationship, you build a small family tree across generations and read multiple relationships off it. Here’s the approach, one shared family tree with four fully worked questions, and a few more to try yourself.
The approach, quickly
- Build the tree top to bottom as you read each clue — the oldest generation at the top, their children below, their children’s children below that.
- Mark every person’s gender the moment it’s given (directly, or implied by a word like "husband," "sister," or "son") — the final relationship name (uncle vs aunt, grandson vs granddaughter) always depends on it.
- A married-in person (a husband or wife who isn’t a blood descendant) still belongs on the tree at their spouse’s generation level, connected sideways rather than by a line of descent.
- Once the tree is drawn, read relationships directly off it by counting generations and tracing the connecting line — this is far more reliable than trying to reason through a long relationship chain in your head.
Worked examples
1. P is the father of Q. Q is the mother of R, a boy. S is the husband of Q. T is the sister of R. How is P related to R?
Solution
- Tree: P (generation 1) is Q’s father. Q (generation 2) is R and T’s mother; S (generation 2) is Q’s husband, so S is R and T’s father too. R and T (generation 3) are siblings.
- P is Q’s father, and Q is R’s mother — so P is R’s grandfather, specifically on R’s mother’s side.
Answer: P is the maternal grandfather of R
2. Using the same family and clues, how is S related to P?
Solution
- S is Q’s husband, and P is Q’s father — the husband of one’s daughter is one’s son-in-law.
Answer: S is the son-in-law of P
3. Using the same family and clues, how is T related to S?
Solution
- T is R’s sister, and S is R’s father (as Q’s husband) — so T is also S’s daughter.
Answer: T is the daughter of S
4. Using the same family and clues, how many of P’s grandchildren are mentioned in the information?
Solution
- P’s only child mentioned is Q, and Q’s children are R and T — that’s 2 of P’s grandchildren mentioned.
Answer: 2
Try these yourself
Using the same family and clues above, answer these, then check against the answer.
1. Using the same family and clues, how is Q related to T?
Answer: Q is the mother of T
2. Using the same family and clues, how is R related to S?
Answer: R is the son of S
3. Using the same family and clues, how is T related to P?
Answer: T is the granddaughter of P
Where this comes up
Family Tree (Blood Relations) puzzles are a regular topic in the Reasoning/General Intelligence section of every exam Pariksha Saathi covers — SSC CGL, SSC MTS, SSC CHSL, IBPS PO, IBPS Clerk, SBI PO and SBI Clerk.
Practice more Family Tree questions
This page covers the approach and a worked family tree. Pariksha Saathi has full topic-wise practice sets for Family Tree puzzles (and every other Reasoning/Quant/English topic) with instant scoring and explanations — free, no account required.
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