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Discussion :: Mathematical and Computer Operations

  1. In the following questions, the symbols +, ×, =, ÷ and - are used with following meanings:
    'P+Q' means 'P is greater than Q'.
    'P×Q' means 'P is either greater than or equal to Q'.
    'P=Q' means 'P is equal to Q'.
    'P÷Q' means 'P is smaller than Q'.
    'P-Q' means 'P is either smaller than or equal to Q'.

    Statements: S Ã— Q, R + T, R - S
    Conclusions: I. S + T   II. Q = T
  2. A.
    if only conclusion I is true.
    B.
    if only conclusion II is true.
    C.
    if either conclusion I or II is true.
    D.
    if neither conclusion I nor II is true.
    E.
    if both the conclusions I and II are true.

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    Answer : Option A

    Explanation :

    S ≥ Q -- (i); R > T -- (ii); R ≤ S -- (iii)

    From (ii) and (iii), we get D â‰¤ S â‰¥ R > T => No relationship between Q and T can be determined. Hence II is not true. But S > T. Hence, I is true.


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