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Question

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?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper PDF (31-Jan-2021) (Shift 1)
The correct answer is
M/P*N

Understanding Blood Relations Symbols

The question defines specific symbols for family relationships:

  • $A+B$ means A is the husband of B. (A is Male, B is Female)
  • $A/B$ means A is the sister of B. (A is Female)
  • $A*B$ means A is the son of B. (A is Male)

The goal is to find the expression where M is the daughter of N. This means M must be Female.

Analyzing the Options

Let's analyze each option to determine the relationship:

Option 1: $M/P*N$

  • $M/P$ implies M is the sister of P. Therefore, M is Female.
  • $P*N$ implies P is the son of N. Therefore, P is Male.
  • Combining these, M is the sister of P, and P is the son of N. This means N is the parent of both M and P. Since M is female (sister), M is the daughter of N.
  • This option correctly shows M is the daughter of N.

Option 2: $M*N/O$

  • $M*N$ implies M is the son of N.
  • This means M is Male. The requirement is that M is the daughter (Female). So, this option is incorrect.

Option 3: $M+O*N$

  • $M+O$ implies M is the husband of O.
  • This means M is Male. The requirement is that M is the daughter (Female). So, this option is incorrect.

Option 4: $P*M+O/N$

  • $P*M$ implies P is the son of M. (P is Male)
  • $M+O$ implies M is the husband of O. (M is Male)
  • This means M is Male. The requirement is that M is the daughter (Female). So, this option is incorrect.

Conclusion

Based on the step-by-step analysis, only Option 1, $M/P*N$, accurately represents the condition that M is the daughter of N.

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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. '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?

  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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