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Discussion :: Mathematical and Computer Operations

  1. In the following questions the symbols @, с, £, ? and $ are used with the following meanings:
    'A@B' means 'A is neither equal to nor smaller than B'.
    'AсB' means 'A is neither greater nor smaller than B'.
    'A£B' means 'A is not equal to B'.
    'A?B' means 'A is neither greater than nor equal to B'.
    'A$B' means 'A is either greater or equal to B'.

    Statements: J Ñ P, P $ N, J £ H
    Conclusions: I. J Ñ N  II. H @ P
  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 D

    Explanation :

    J = P -- (i); P ≥ N -- (ii); J ≠ H -- (iii)

    From (i) and (ii), we get, J = P â‰¥ N => J â‰¥ N => I may be true but not necessarily so.


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