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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 than nor equal to Q'.
    'P©Q' means 'P is not smaller than Q'.
    'P*Q' means 'P is not greater than Q'.
    'P$Q' means 'P is neither smaller than nor greater than Q'.
    'P#Q' means 'P is neither greater than nor equal to Q'.

    Statements: Z # N, F © N, F * K
    Conclusions: I. K $ N   II. K @ Z
  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 B

    Explanation :

    Z < N -- (i); F ≥ N -- (ii); F ≤ K -- (iii)

    Combining all, we get:


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