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Discussion :: Mathematical and Computer Operations

  1. In the following questions the symbols +, ×, ?, @ and $ are used with the following meanings:
    'P+Q' means 'P is neither smaller nor greater than Q'.
    'P×Q' means 'P is neither equal to nor smaller than Q'.
    'P?Q' means 'P is neither greater than nor equal to Q'.
    'P@Q' means 'P is neither greater than or equal  to Q'.
    'P$Q' means 'P is not equal to Q'.

    Statements: A + B, B $ C, C ? A
    Conclusions: I. C $ A   II. B + C

  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 :

    A = B -- (i); B ≠ C -- (ii); C < A -- (iii)

    From (iii), conclusion I is true. II contradicts statement (ii). Hence it is not true.


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