Coded Blood Relations - 2

CMAT 2026 · Logical Reasoning · Medium · Blood Relations

Consider the following information:

  • 'P # Q' means 'P is the father of Q';
  • 'P + Q' means 'P is the mother of Q';
  • 'P - Q' means 'P is the brother of Q';
  • 'P * Q' means 'P is the sister of Q'.

Which of the following shows that A is the aunt of E?

  1. A.

    A - B + C # D * E

  2. B.

    A * B # C * D - E

  3. C.

    A # B * C + D - E

  4. D.

    A + B - C * D # E

Answer

B

Explanation

Testing option B: A∗B#C∗D−EA * B \# C * D - E

  • A∗B  ⟹  AA * B \implies A is the sister of BB.
  • B#C  ⟹  BB \# C \implies B is the father of CC.
  • C∗D−E  ⟹  C,D,EC * D - E \implies C, D, E are siblings.

Since AA is the sister of BB, and BB is the father of EE, AA is the aunt of EE.

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