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Question

P is the brother of Q. Q is the sister of R. R is the father of S. How is P related to S?

This question was previously asked in
SSC CGL 2025 Tier 2 Paper 1 Question Paper (19-Jan-2026)
The correct answer is
Uncle

Blood Relation Analysis: P's Relationship to S

This problem involves determining the relationship between individuals based on given family connections. We need to trace the relationships step-by-step.

Step 1: Analyze the given relationships

  • P is the brother of Q.
  • Q is the sister of R.
  • R is the father of S.

Step 2: Combine sibling relationships

From the first two statements, we know that P, Q, and R are siblings. P is male (brother), Q is female (sister), and R's gender isn't explicitly stated initially but implied as male because R is a father.

  • P and Q are siblings.
  • Q and R are siblings.
  • Therefore, P, Q, and R are all siblings.

Step 3: Determine P's relationship to S

We know R is the father of S. Since P is the brother of R (from Step 2), P is the paternal uncle of S (father's brother).

Thus, P is related to S as an Uncle.

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  1. A is the son of B. C is the wife of B. D is the son of C. How is A related to D?
  2. A is the father of B. B is the brother of C. How is A related to C?
  3. A is the mother of B. B is the sister of C. How is A related to C?
  4. A is the wife of B. C is the son of A. How is C related to B?
  5. Ganesh was taking a walk with his mother’s brother’s father’s granddaughter. Who was he walking with?

  6. Pointing to Suresha, I said, “She is the daughter of the brother of the son of my wife.” How am I related to Suresha?

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Important Questions from General Blood Relation Problems

  1. A is the husband of B, C is the mother-in-law of B, D is the father of A, E is the mother of D, F is the mother of C and G. If H is the father of D, then what is the relation of H with E?

  2. Neeraj pointed at a photo of a lady and said, "She is the daughter of my paternal grandfather's only son. What is the relation of Neeraj with the lady in the photo?

  3. If my sister's mother-in-law's only son is Devika's father, how is Devika's paternal grandfather related to my sister?

  4. Pointing towards a boy, Ranjita said, “He is my husband's father-in-law's only daughter's son's father's only sister's son”. How is that boy's mother related to Ranjita's husband?

  5. If Samaira is the daughter of my father's mother's only son, how is Samaira related to me?

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