Competitive Exams / CUET UG / Logical Reasoning / Blood Relations

Blood Relations for CUET UG

Build clean family trees for portrait questions, multi-generation charts, and coded blood relation puzzles with original notes and timed practice inside the Learn at My Place competitive flow.

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Overview

Why This Chapter Matters in CUET

Blood relation questions are scoring because they reward structure more than memorisation. The moment you convert the sentence into a family tree, the puzzle becomes visual and controlled.

The biggest improvement comes from reading relations as generation movement instead of as long confusing text. That habit is what turns this chapter into a fast one.

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Section A

Notes & Concept Builder

Tree first, answer second

1. The Family Tree Method

Blood relation questions look verbal, but they become easy when converted into a family tree. Use one level for one generation and move up or down only when the relation demands it.

Fast rule: generation first, gender second, exact relation third.

If the generation is wrong, even a correct-looking answer becomes wrong.

2. Read Relations as Generation Jumps

Father, mother, uncle, and aunt usually move you one level up. Son, daughter, niece, and nephew usually move you one level down. Brother, sister, cousin, and spouse stay in the same generation.

Best habit: do not solve the whole sentence at once. Walk through it one phrase at a time.

This keeps long relation chains under control.

3. Fix Gender Only from the Clue

Never assume gender from a name. In reasoning questions, names are only labels unless the sentence itself fixes the gender.

Exam trap: students often jump from cousin to brother or from relative to uncle without proof.

Let the statement decide whether the person is male, female, or still unknown.

4. Portrait and Pointing Questions

In photo or pointing questions, the person being referred to is just one node in the family tree. Build the relation around the speaker first.

Portrait shortcut: anchor the speaker, then move through the chain exactly in the written order.

Do not start the tree from the photo person. Start from the known reference person.

5. Multi-Person Family Charts

In family tree sets, place married pairs on the same line, children one level below, and grandparents one level above. Siblings sit on the same generation line.

Build order: married pair → children → older generation → side relations like siblings or in-laws.

This prevents messy diagrams and keeps the structure stable.

6. Coded Blood Relations

In coded relations, decode the symbols first and only then think about the answer. If one symbol means father and another means sister, write that clearly before reading the whole expression.

Direction tip: often the safest way is to read from the most stable end, usually the child end or the final known generation link.

Once the coded links are converted into normal relations, the problem becomes a regular family tree question.

7. Limiting Words That Change the Answer

Words such as only son, only daughter, maternal, paternal, brother-in-law, and daughter-in-law sharply reduce the valid possibilities.

Read carefully: maternal uncle is mother's brother, while paternal aunt is father's sister.

These small qualifiers are often the real pivot of the puzzle.

8. Exam Strategy for CUET UG

Blood relations become fast only after repetition. Start with direct relations, then portrait chains, then mixed family charts, and finally coded relations under time pressure.

Weekly loop: direct relations → portrait questions → family charts → coded relations → mixed mock.

That order improves both confidence and speed in the chapter.

Solved Practice

Solved Examples

Map the tree before opening
Example 1: Pointing to a photograph, Ayaan says, 'She is the daughter of the only sister of my father.' How is the woman related to Ayaan?

Start from Ayaan and move to his father.

Now move sideways to the father's only sister. Her daughter is Ayaan's cousin.

Example 2: Pointing to a woman, Riya says, 'She is the mother of my mother's husband.' How is the woman related to Riya?

Mother's husband is Riya's father.

The mother of that person is Riya's grandmother.

Example 3: Pointing to a boy, Kabir says, 'He is the son of the daughter of my father.' How is the boy related to Kabir?

The daughter of Kabir's father is Kabir's sister.

Her son is Kabir's nephew.

Example 4: Pointing to a man, Meera says, 'He is the brother of my mother's daughter.' Who is he to Meera?

Mother's daughter is Meera herself or her sister.

The brother of that daughter is Meera's brother.

Example 5: In a family chart, Arnav and Siya are married. Their children are Ved and Tara. Rohit is Arnav's father. How is Rohit related to Tara?

Place Arnav and Siya on one generation line, Ved and Tara one level below, and Rohit one level above Arnav.

Rohit is Tara's grandfather.

Example 6: In a family chart, Neha and Karan are siblings. Karan is the father of Ishita. How is Neha related to Ishita?

Neha and Karan are in the same generation.

If Karan is Ishita's father, then Neha is Ishita's aunt.

Example 7: What is the difference between mother's brother and brother's mother?

Mother's brother is maternal uncle.

Brother's mother is your own mother.

Example 8: If P + Q means P is the brother of Q and Q × R means Q is the mother of R, how is P related to R?

Q is mother of R, so P is the brother of R's mother.

That makes P the uncle of R.

Example 9: If a statement says 'my father's sister's son', which generation is the final person in?

Father's sister is in the parent generation.

Her son comes down one level, so the final person is in the same generation as the speaker.

Example 10: Why should gender be fixed after generation in blood relation questions?

Because many relation words first tell you where the person sits in the tree and only then whether the person is male or female.

That order reduces wrong assumptions.

Next Step

Move into Timed Practice

Use the sectional practice page to isolate direct relations, portrait chains, family chart questions, and coded blood relation logic. Then finish with the full mixed mock to test speed and clarity together.

Finished this topic?

Keep the practice loop moving

Move straight from chapter-wise questions into a subject test, then loop back into weaker areas instead of ending the session here.