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'R $ S' means that R is the brother of S.
'R @ S' means R is the wife of S.
'R # S' means R is the daughter of S.
'R > S' means R is the father of S.
Based on the above, which option indicates that D is the father-in-law of A?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper PDF (31-Jan-2021) (Shift 1)
The correct answer is
A @ B $ C # D > E

Symbol Meanings

  • $R $ S$: R is the brother of S (R is male).
  • $R @ S$: R is the wife of S (R is female, S is male).
  • $R # S$: R is the daughter of S (R is female).
  • $R > S$: R is the father of S (R is male).

Objective: D is Father-in-law of A

The goal is to find the expression where D is the father-in-law of A. This requires D to be the male parent of A's spouse.

Option B Breakdown: $A @ B $ C # D > E$

Let's break down the relationships in Option B:

  1. $A @ B$: This indicates A is the wife of B. Thus, B is the husband of A, and B is male.
  2. $B $ C$: This indicates B is the brother of C. B is male.
  3. $C # D$: This indicates C is the daughter of D. C is female. D is a parent of C.
  4. $D > E$: This indicates D is the father of E. D is male.

D's Relation to A

From step 3, D is a parent of C. From step 2, B is the brother of C. Since B and C are siblings, they share the same parent(s). Therefore, D is also a parent of B.

Step 4 confirms that D is male.

Combining these points: D is the father of B.

From step 1, A is the wife of B.

Since D is the father of B, and A is the wife of B, D is the father of A's husband. This makes D the father-in-law of A.

Final Answer Check

Option B correctly establishes that D is the father-in-law of A based on the provided symbol definitions.

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Similar Questions

  1. In a certain code language,
    A + B means 'A is the husband of B',
    A − B means 'A is the brother of B',
    A x B means 'A is the sister of B' and
    A ÷ B means 'A is the daughter of B'.

    How is C related to J if 'C − E ÷ G + I x J'?
  2. Mo > No means that Mo is the daughter of No.  

    Mo # No means Mo is the father of No.

    Mo $ No means Mo is the mother of No. 

    Mo / No means Mo is the brother of No. 

    Based on the above, how is Po related to Ko in the given expression?  

    Po $ Qo # Ro / To > Ko

     

  3. If 'X + Y' means 'X is the brother of Y', 'X $\times$ Y' means 'X is the father of Y' and 'X / Y' means 'X is the mother of Y', then which of the following would mean 'R is the son of S'?

  4. If A+B means A is the husband of B, A/B means A is the sister of B and A*B means A is the son of B. Which of the following shows M is the daughter of N?
  5. If L + M means ‘L is the son of M’, L - M means ‘L is the husband of M’, L × M means ‘L is the brother of M’ and L ÷ M means ‘L is the mother of M’, what does A × B ÷ C mean?
  6. 'A#B' means 'A is the brother of B', 'A^B' means 'A is the daughter of B', 'A*B' means 'A is the aunt of B' and 'A%B' means 'A is the mother of B'. If P*G%U#V^T#Z*V, then how is Z related to G?

  7. In a certain code language,
    A # B means ‘A is the mother of B’,
    A % B means ‘A is the brother of B’,
    A - B means ‘A is the wife of B’ and
    A @ B means ‘A is the father of B’.

    How is C related to U if ‘C - O @ M # B % U’?
  8. In a certain code language, 

    A % B means 'A is the father of B', 

    A € B means 'A is the wife of B',

     A = B means 'A is the mother of B', and 

    A ? B means 'A is the daughter of B'.

     Based on the above, how is B related to X if 'B = C ? O % P € X'?

  9. In a certain code language, 

    A @ B means 'A is the sister of B', 

    A $ B means 'A is the father of B', 

    A # B means 'A is the wife of B' and

     A & B means 'A is the brother of B'. 

    How is E related to Y if 'E $ N @ T # R & Y'?

  10. In a certain code language,

     A @ B means ‘A is the son of B’,

     A ≤ B means ‘A is the wife of B’, 

    A £ B means ‘A is the father of B’ and

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

    How is A related to P if ‘A @ D £ J ≠ L ≤ P’?


Important Questions from Coded Blood Relation Problems

  1. If P $ Q means P is the husband of Q; P ! Q means P is the mother Q and P * Q means P is the daughter of Q, which of the following shows that Z is brother of W's wife, if Z is male?

  2. If P $ Q means P is the brother of Q; P ! Q means P is the mother Q and P * Q means P is the son of Q, which of the following shows that W is brother of Z?

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

    A @ B means ‘A is the son of B’.

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

    A % B means ‘A is the wife of B’.

    If W # Q @ T & Y @ M % K, then how is K related to W?

  4. If 'A % B' means A is the father of B, 'A * B' means A is the mother of B, 'A @ B' means A is the wife of B, then Which of the following means that X is the grandmother of Y?

  5. In a certain code language,

    'A - B' means 'A is father of B'

    'A + B' means 'A is mother of B'

    'A × B' means 'A is husband of B', and

    'A ÷ B' means 'A is the son of B'.

    If 'U ÷ Q ÷ P - R × S + T × V', then how is U related to V?

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