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Question

Directions: Study the following information carefully to answer the given questions:

 If 'A & B' means 'A is the mother of B'

 If 'A $ B' means 'A is the brother of B'

 If 'A # B' means 'A is the sister of B' 

If 'A @ B' means 'A is the father of B' 

If 'A % B' means 'A is the daughter of B'

 If 'A * B' means 'A is the son of B' 

Which of the following means R is a brother of P?

This question was previously asked in
SSC CGL 2025 Tier 1 Question Paper (25-Sep-2025) (Shift 3)
The correct answer is
R * Q & P

Blood Relation Coding Puzzle Solution

The question requires identifying the coded expression that signifies 'R is a brother of P' using the provided relationship definitions.

Understanding the Relationship Codes

  • $A & B$: A is the mother of B (A is female)
  • $A $ B$: A is the brother of B (A is male)
  • $A # B$: A is the sister of B (A is female)
  • $A @ B$: A is the father of B (A is male)
  • $A % B$: A is the daughter of B (A is female)
  • $A * B$: A is the son of B (A is male)

Analyzing Options for 'R is brother of P'

Option 1: $P * Q % R$

  • $P * Q$ indicates P is the son of Q (P is male).
  • $Q % R$ indicates Q is the daughter of R (Q is female).
  • This establishes P as male and R as a grandparent, but not necessarily R as P's brother.

Option 2: $R * Q & P$

  • $R * Q$ indicates R is the son of Q (R is male).
  • $Q & P$ indicates Q is the mother of P (Q is female).
  • Since R is the son of Q (male) and Q is the mother of P, R and P are siblings sharing the same mother. Therefore, R is the brother of P. This matches the required condition.

Option 3: $Q % P & R$

  • $Q % P$ indicates Q is the daughter of P (Q is female).
  • $P & R$ indicates P is the mother of R (P is female).
  • This states P is R's mother. As P is female, R cannot be P's brother.

Option 4: $Q * R & P$

  • $Q * R$ indicates Q is the son of R (Q is male).
  • $R & P$ indicates R is the mother of P (R is female).
  • This states R is P's mother. As R is female, R cannot be P's brother.

Conclusion

Option 2, $R * Q & P$, is the correct expression because it accurately defines R as male and establishes R and P as siblings through their mother Q, fulfilling the condition 'R is a brother of P'.

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Similar Questions

  1. Directions: These questions are based on the following information:

    ‘P @ Q’ means ‘Q is the mother of P’.
    ‘P $ Q’ means ‘Q is the husband of P’.
    ‘P # Q’ means ‘Q is the sister of P’.
    ‘P & Q’ means ‘Q is the son of P’.

    If ‘Z # M $ C & D & E’ then how is E related with M?
  2. Directions: These questions are based on the following information:

    'P@Q' means 'Q is the mother of P'.
    'P $ Q' means 'Q is the husband of P'.
    'P#Q' means 'Q is the sister of P'.
    'P & Q' means 'Q is the son of P'.

    If 'A & B @ C & D # E' then how is A related with E?
  3. A - B means A is the sister of B A × B means A is the mother of B A ÷ B means A is the father of B A + B means A is the brother of B What is the relation in A × B + C?

Important Questions from Coded Blood Relation Problems

  1. ‘A # B’ means ‘A is the son of B’.

    ‘A @ B’ means ‘A is the mother of B’.

    ‘A & B’ means ‘A is the wife of B’.

    ‘A % B’ means ‘A is the sister of B’.

    If ‘M @ R % K # G # N & T’, then which of the following statements is NOT correct?

  2. ‘A % B’ means ‘A is the sister of B’.

    ‘A $ B’ means ‘A is the brother of B’.

    ‘A @ B’ means ‘A is the son of B’.

    ‘A & B’ means ‘A is the mother of B’.

    If ‘R % T & Z $ S @ V @ C % Y’, then which of the following statements is NOT correct?

  3. Read the given information carefully and answer the question that follows.

    ‘K $ D’ means ‘K is the father of D’.

    ‘K < D’ means ‘K is the wife of D’.

    ‘K > D’ means ‘K is the daughter of D’.

    'K @ D’ means ‘K is the son of D’.

    How is S related to N in the expression ‘H > R $ S @ T > N’?

  4. ‘R8S’ means ‘R is the father of S’.

    ‘R7S’ means ‘R is the sister of S’.

    ‘R6S’ means ‘R is the brother of S’.

    ‘R2S’ means ‘R is the wife of S’.

    Which of the following expressions represents ‘X is the mother of Y’?

  5. ‘A # B’ means ‘A is the father of B’.

    ‘A % B’ means ‘A is the mother of B’.

    ‘A @ B’ means ‘A is the sister of B’.

    ‘A & B’ means ‘A is the son of B’.

    If ‘G # M # T % S @ H & R & W @ U’, then which of the following statements is NOT correct?

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