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Question

Read the following statements and answer the questions based on them
A+B means A is daughter of B
A-B means A is the son of B
A*B means A is the aunt of B
A/B means A is the uncle of B.Which of the following shows that 'O is the grand daughter of N'?

The correct answer is
O+M-N

Blood Relation Codes Defined

The provided codes define family relationships:

  • A + B means A is the daughter of B.
  • A - B means A is the son of B.
  • A * B means A is the aunt of B.
  • A / B means A is the uncle of B.

Options Analysis: O Granddaughter of N

We need to find the expression where 'O' is the granddaughter of 'N'. Let's analyze each option:

Option 1 Analysis: O-M+N

1. Decode O-M: $O-M$ means O is the son of M. (This implies O is male).

2. Decode M+N: $M+N$ means M is the daughter of N.

Result: M is N's daughter, and O is M's son. Thus, O is N's grandson.

Option 2 Analysis: N+M-O

1. Decode N+M: $N+M$ means N is the daughter of M.

2. Decode M-O: $M-O$ means M is the son of O.

Result: M is O's son, and N is M's daughter. Thus, N is O's granddaughter. This shows N is the granddaughter, not O.

Option 3 Analysis: N-M+O

1. Decode N-M: $N-M$ means N is the son of M. (This implies N is male).

2. Decode M+O: $M+O$ means M is the daughter of O.

Result: M is O's daughter, and N is M's son. Thus, N is O's grandson.

Option 4 Analysis: O+M-N

1. Decode O+M: $O+M$ means O is the daughter of M. (This implies O is female).

2. Decode M-N: $M-N$ means M is the son of N.

Result: M is N's son, and O is M's daughter. Thus, O is N's granddaughter. This matches the requirement.

Final Conclusion

The expression $O+M-N$ correctly establishes that O is the granddaughter of N.

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Important Questions from Coded Blood Relation Problems

  1. In a certain code language,
    A@ B means ‘A is the son of B’
    A % B means ‘A is the brother of B’
    A + B means ‘A is the wife of B’
    A & B means ‘ A is the father of B’
    Based on the above, how is T related to K if ‘T@S%G+H & K’?

  2. In a certain code language,
    A + B means 'A is the daughter of B'
    A $-$ B means 'A is the brother of B'
    A x B means 'A is the wife of B'
    A $\div$ B means 'A is the father of B'
    Based on the above, how is D related to J if 'D + F $\div$ G $-$ H x J'?
  3. In a certain code language,
    A + B means 'A is the son of B'
    A – B means 'A is the brother of B'
    A x B means 'A is the wife of B'
    A ÷ B means 'A is the father of B'

    Based on the above, how is W related to G if 'W – O x R + K ÷ G'?
  4. In a certain code language,
    X + Y means ‘X is the husband of Y’,
    X – Y means ‘X is the mother of Y’,
    X × Y means ‘X is the wife of Y’ and
    X ÷ Y means ‘X is the father of Y’.

    Based on the above, how is P related to T if ‘P + Q – R × S ÷ T’?
  5. Read the information carefully and answer the following question.

    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 brother of B

    In the given expression M+N-O*Q, how is M related to O?
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