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Question

In a certain code language,
'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' and
'A / B' means 'A is the brother of B'.
Based on the above, how is L related to N if 'P + L / R - N'?

This question was previously asked in
RRB ALP 2025 CBT 2 Wiremen Question Paper (28-Jul-2026) (Shift 2)
The correct answer is
Mother's brother

The problem asks us to determine the relationship between L and N based on a given coding language for family relationships.

Decoding the Relationships

First, let's understand the code:

  • \(A + B\) 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.

Analyzing the Expression: \(P + L / R - N\)

We break down the expression step-by-step:

  1. \(P + L\): This means P is the father of L. (P is male)
  2. \(L / R\): This means L is the brother of R. (L is male)
  3. \(R - N\): This means R is the mother of N. (R is female)

Determining L's Relationship to N

Let's combine these facts:

  • From step 1, P is the father of L.
  • From step 2, L is the brother of R. This implies P is also the father of R (since L and R are siblings).
  • From step 3, R is the mother of N.
  • Since L is the brother of R (step 2), and R is the mother of N (step 3), L is the brother of N's mother.
  • Therefore, L is the Mother's brother of N.

This matches Option D.

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Similar Questions

  1. Read the following question and decide which of the given statements is/are sufficient.

    Question:

    Is Y > 0?

    Statements:

    1. X + Y > 0

    2. X - Y > 0

  2. 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’

    A ÷ B means ‘A is the father of B’

    A # B means ‘A is the daughter of B’

    How is P related to K if ‘Q – R × P ÷ S – T + K’?

  3. In a certain code language,

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

    'A - B' means 'A is the brother of B',

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

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

    How is M related to T if 'M - N + P ÷ S x T'?

  4. In a certain code language,
    A + B means 'A is the mother of B',
    A - B means 'A is the brother of B',
    A \(\times\) B means 'A is the wife of B' and
    A \(\div\) B means 'A is the father of B'.
    Based on the above, how is Q related to T if 'P \(\times\) Q \(\div\) R - S + T'?
  5. In a certain code language,
    'S + T' means 'S is the father of T',
    'S - T' means 'S is the brother of T',
    'S x T' means 'S is the wife of T' and
    'S ÷ T' means 'S is the sister of T'.
    Based on the above, how is M related to Q if 'M - N ÷ O + P x Q'?
  6. In a certain code language,
    'A - B' means 'A is the daughter of B',
    'A / B' means 'A is the son of B',
    'A * B' means 'A is the wife of B' and
    'A + B' means 'A is the husband of B'.
    Based on the above, how is T related to Z if 'T / L + H - Z'?
  7. A is the brother of B. B is the son of C. M is married to B. Q is the only daughter of M. C is the sister of D. How is A related to C?
  8. In a certain code language,
    'A + B' means 'A is the wife of B',
    'A - B' means 'A is the daughter of B',
    'A * B' means 'A is the father of B' and
    'A / B' means 'A is the brother of B'.
    Based on the above, how is W related to E if 'W - Q * F * E'?
  9. 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' and 
    'A % B' means 'A is the father of B'. 
    How is M related to T if 'M × N % P + S - T'?

  10. 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 M related to T if ‘M ÷ N × P − S + T’?


Important Questions from Blood Relations

  1. Consider the Question and two Statements given below:

    Question : Is Zbrother of X?

    Statement-1 : X is a brother of Y and Y is a brother of Z.

    Statement-2 : X, Y and Z are siblings.

    Which one of the following is correct in respect of the Question and the Statements?

  2. A family of two generations consisting of six members P, Q, R, S, T and U has three males and three females. There are two married couples and two unmarried siblings. U is P’s daughter and Q is R’s mother-in-law. T is an unmarried male and S is a male. 

    Which one of the following is correct?

  3. A joint family consists of seven members A, B, C, D, E, F and G with three females. G is a widow and sister-in-law of D's father F. B and D are siblings and A is daughter of B. C is cousin of B. 

    Who is E? 

    1. Wife of F 

    2. Grandmother of A 

    3. Aunt of C 

    Select the correct answer using the code given below:

  4. Given that, 

    1) A is the brother of B. 

    2) C is the father of A. 

    3) D is the brother of E. 

    4) E is the daughter of B. Then, the uncle of D is

  5. Read the passage given below and answer the items that follow. 

    A, B, C, D, E, F are members of a family. They are engineer, stenographer, doctor, draughtsman, lawyer and judge (not in order). A, the engineer is married to the lady stenographer. The judge is married to the lawyer. F, the draughtsman is the son of B and brother of E. C, the lawyer is the daughter-in-law of D. E is the unmarried doctor. D is the grandmother of F. There are two married couples in the family. 

    What is the profession of B?

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