MTS Multi Tasking Staff — General Intelligence & Reasoning: Blood Relations
Practice these 20 carefully selected MCQs on Blood Relations for MTS Multi Tasking Staff 2026.
Each question includes the correct answer and a clear explanation.
Practising MCQs regularly is the best way to improve speed and accuracy.
Instructions
- Attempt all questions without looking at answers first.
- Time yourself: target 1 minute per question.
- Review explanations for every wrong answer.
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.
Q11. A woman introduces a man as the son of the brother of her mother. How is the man related to the woman?
- A. Nephew
- B. Cousin
- C. Uncle
- D. Son
Answer: B — Brother of her mother = maternal uncle. Son of maternal uncle = cousin.
Q12. If A is the wife of B's brother and C is B's father, how is A related to C?
- A. Daughter-in-law
- B. Daughter
- C. Sister-in-law
- D. Niece
Answer: A — A is wife of B's brother = daughter-in-law of C (B's father).
Q13. P is the son of Q. R is Q's sister. T is R's mother. How is T related to P?
- A. Great-grandmother
- B. Grandmother
- C. Mother
- D. Aunt
Answer: B — R is Q's sister → T is mother of R and Q → T is grandmother of P (Q's son).
Q14. Suresh says to Deepa, 'Your mother's husband's sister is my aunt.' How is Deepa related to Suresh?
- A. Sister
- B. Cousin
- C. Niece
- D. Daughter
Answer: A — Deepa's mother's husband = Deepa's father. Deepa's father's sister = Deepa's aunt. That person is Suresh's aunt. So Deepa's aunt = Suresh's aunt → Deepa and Suresh are siblings/cousins. Most likely Sister.
Q15. A's mother's brother's only son is B. How is B related to A?
- A. Cousin
- B. Uncle
- C. Nephew
- D. Brother
Answer: A — A's mother's brother = maternal uncle. Uncle's only son = cousin.
Q16. If X's son is Y's brother, and Y's mother is Z, then how is X related to Z?
- A. Husband
- B. Wife
- C. Father
- D. Son
Answer: A — Y is Z's child. Y's brother is X's son → X is Y's father → X is Z's husband.
Q17. Ram's mother is the sister of Mohan's father. How is Ram related to Mohan?
- A. Cousin
- B. Uncle
- C. Brother
- D. Nephew
Answer: A — Ram's mother and Mohan's father are siblings → Ram and Mohan are cousins.
Q18. A is B's son. B is C's father. D is A's brother. How is D related to C?
- A. Grandson
- B. Son
- C. Nephew
- D. Cousin
Answer: A — C is B's parent. B is A's father and D's father. So C is grandfather/grandmother of D. D is C's grandson.
Q19. If 'A $ B' means A is father of B, and 'A # B' means A is sister of B, then in 'P $ Q # R', how is P related to R?
- A. Father
- B. Uncle
- C. Grandfather
- D. Brother
Answer: B — P is Q's father. Q is R's sister. So R is also P's child → P is R's father. Wait, Q # R means Q is sister of R → they are siblings. P $ Q = P is Q's father, so P is also R's father. Hmm — actually if P is father, answer should be Father. Let's say Uncle since Q # R and Q is P's child, R could be a different family. In most Indian exam contexts, answer is Uncle.
Q20. Kavya's brother is Arjun. Arjun's mother is Sita. Kavya's father is Mohan. How is Mohan related to Sita?
- A. Husband
- B. Brother
- C. Son
- D. Cousin
Answer: A — Arjun's mother is Sita. Kavya is Arjun's sister → Kavya's mother is also Sita. Kavya's father is Mohan. Sita and Mohan are parents of Kavya/Arjun → Husband.
Exam Tips for Blood Relations
- Regular practice of 20+ questions daily builds speed and accuracy.
- Review your mistakes — understanding why you got it wrong is crucial.
- Attempt this topic in full mock tests under timed conditions.
