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Question

In a certain code language,
'M + N' means 'M is the brother of N',
'M - N' means 'M is the husband of N',
'M x N' means 'M is the sister of N' and
'M ÷ N' means 'M is the mother of N'.
Based on the above, how is A related to F if 'A - B ÷ C + D x E + F'?

This question was previously asked in
RRB ALP 2025 CBT 2 Mechanic Motor Vehicle Question Paper (28-Jul-2026) (Shift 1)
The correct answer is
Father

Decoding Relationship Codes

Understand the meaning of each code:

  • \(M + N\) means M is the brother of N.
  • \(M - N\) means M is the husband of N.
  • \(M x N\) means M is the sister of N.
  • \(M ÷ N\) means M is the mother of N.

Analyzing the Expression: \(A - B ÷ C + D x E + F\)

Break down the expression step-by-step to determine gender and relationships:

  • \(A - B\): A is the husband of B. This tells us A is Male and B is Female.
  • \(B ÷ C\): B is the mother of C. This confirms B is Female.
  • \(C + D\): C is the brother of D. This tells us C is Male.
  • \(D x E\): D is the sister of E. This tells us D is Female.
  • \(E + F\): E is the brother of F. This tells us E is Male.

Determining A's Relationship to F

Combine the decoded information:

  • From \(A - B\), A is the husband of B. A is therefore the father of any children B has.
  • From \(B ÷ C\), B is the mother of C.
  • From the subsequent codes (\(C + D\), \(D x E\), \(E + F\)), we know that C, D, E, and F are siblings.
  • Since B is the mother of C and her siblings, and A is the husband of B (and thus the father), A is the father of all these siblings, including F.

Therefore, A is the Father of F.

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Similar Questions

  1. 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 Shreya related to Mahak if ‘Shreya + Dev − Taran × Harshit % Mahak’?

  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’ and
    A % B means ‘A is the father of B’.
    How is Satish related to Mayank if ‘Satish + Deep × Piyush – Hitesh % Mayank’?

  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 × B’ means ‘A is the wife of B’ and
    ‘A ÷ B’ means ‘A is the father of B’.
    How is M related to K if ‘J × K − L ÷ M + N’?
  4. If C% D means C is the mother of D, C $ D means C is the wife of D, and if C & D means C is the son-in-law of D, then what does W % X $ Y & Z mean?

  5. If G + H means G is the sister of H; G – H means G is the daughter H and G * H means G is wife of H, which of the following shows that Q is the father of P?

  6. If A $ B means A is the sister of B, A # B means A is the mother of B and if A × B means A is the father of B, then what does P × Q $ R # S mean?

  7. If C $ D means C is the husband of D, C & D means C is the mother of D and C % D means C is the son of D, then what does X % Z $ W & Y mean if W has only one son?
  8. If C% D means C is the wife of D; C & D means C is the father of D; and If C $ D means C is the daughter of D, then what would X $ Y % W & Z mean if W has only one daughter?

  9. If I + J means I is the father of J; I – J means I is the son-in-law of J; and I * J means I is the wife of J, then which of the following shows that F is the brother of C, considering that C has only one sibling?

  10. If G + H means G is daughter of H, G- H means G is sister H and G * H means G is husband of H, which of the following shows that I is the daughter of H?


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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