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      Question

      If X – Y means that X is the mother of Y, X ×

      Y means that X is the father of Y, X Ă· Y means that X is the sister of Y, then which of the following expression shows that Q is the son of P?
      A P – Q × R Correct Answer Incorrect Answer
      B P – Q ÷ R Correct Answer Incorrect Answer
      C Q – P × R Correct Answer Incorrect Answer
      D R × Q – P Correct Answer Incorrect Answer

      Solution

      According to the expression P – Q × R, P – Q means  P is the mother of Q. or we can say Q is Son/Daughter of P. Q × R means Q is the father of R,  That means is Q is Son of P.

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