Introduction
This guide covers the Blood Relations topic for MTS Multi Tasking Staff aspirants.
Master the concept, understand the tricks, and then test yourself with 10 practice MCQs.
Blood Relations — Concept Guide
Blood relation problems test your ability to decode family relationships. These often involve coded relationships or pointing to photos with clues about relatives.
Key Relationships
- Parents: Father, Mother → both parents of same children
- Siblings: Brother, Sister → same parents
- Grandparents: Father/Mother of your parent
- Uncle/Aunt: Sibling of your parent
- Cousin: Child of your uncle/aunt
- In-laws: Spouse's relatives
- Nephew/Niece: Child of your sibling
Solving Strategy
- Draw a family tree — always.
- Assign gender carefully (note: some names can be either gender).
- Start from the most clearly defined person.
- Work step by step, don't skip relations.
⚡ Shortcuts & Tricks
- "Only daughter of my mother" = the person speaking (self-reference trick).
- "Son of the only son of my grandfather" = myself (or my brother).
- In coded blood relation problems: $ = father, @ = mother, % = sibling etc. — decode each symbol first.
- Always verify gender by name or pronoun clues before concluding.
- Maternal vs. Paternal: Maternal uncle = mother's brother; Paternal aunt = father's sister.
Practice MCQs — Blood Relations (10 Questions)
Now test your understanding with these 10 questions:
Q1. A is the father of B. B is the sister of C. How is A related to C?
- A. Father
- B. Uncle
- C. Brother
- D. Grandfather
Answer: A — A is father of B; B is sister of C → A is father of C.
Q2. If X is the mother of Y, and Y is the brother of Z, how is X related to Z?
- A. Mother
- B. Aunt
- C. Sister
- D. Grandmother
Answer: A — X is Y's mother; Y is Z's brother → X is Z's mother.
Q3. Pointing to a photo, Ram says 'She is my mother's only daughter's only child.' Who is in the photo?
- A. Ram's sister
- B. Ram himself
- C. Ram's niece
- D. Ram's cousin
Answer: B — Mother's only daughter = Ram's sister (if Ram is male) or Ram himself (if Ram is female). If only child, likely Ram himself.
Q4. A + B means A is father of B. A – B means A is mother of B. A × B means A is brother of B. In P – Q + R, how is P related to R?
- A. Grandmother
- B. Grandfather
- C. Mother
- D. Aunt
Answer: A — P – Q: P is mother of Q. Q + R: Q is father of R. So P is grandmother of R.
Q5. P is Q's son. Q is R's mother. S is R's husband. How is P related to S?
- A. Son-in-law
- B. Brother-in-law
- C. Son
- D. Nephew
Answer: B — P is Q's son. Q is R's mother. So P is R's brother. R's husband is S. P is S's brother-in-law.
Q6. Introducing a man, a woman says 'His mother is the only daughter of my mother.' How is the man related to the woman?
- A. Son
- B. Brother
- C. Nephew
- D. Father
Answer: A — Only daughter of woman's mother = the woman herself. So the man's mother is the woman → the man is her son.
Q7. A's father is B's son. How is A related to B?
- A. Grandson
- B. Son
- C. Nephew
- D. Brother
Answer: A — B's son is A's father → B is A's grandfather → A is B's grandson.
Q8. Two ladies and two men are playing cards. X and Y are sisters. A and B are brothers. X is the wife of A. How is Y related to B?
- A. Sister-in-law
- B. Wife
- C. Cousin
- D. Sister
Answer: A — X is A's wife; Y is X's sister; B is A's brother → Y is sister-in-law of B.
Q9. If M is sister of N and N is the father of P, then M is P's?
- A. Aunt
- B. Mother
- C. Sister
- D. Grandmother
Answer: A — M is N's sister; N is P's father → M is P's aunt.
Q10. Looking at a portrait, Sita says 'His mother is the wife of my father's son. I have no siblings.' Who is the portrait of?
- A. Sita's son
- B. Sita's father
- C. Sita herself
- D. Sita's nephew
Answer: A — Father's son = Sita (no siblings). Wife of Sita = portrait person's mother. So portrait = Sita's son.
Summary
Blood Relations is a scoring topic in MTS Multi Tasking Staff if you practise consistently.
Focus on understanding the concept, apply the shortcut tricks, and practice regularly.
Aim for 100% accuracy in this topic through regular revision.
