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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 either equal to or smaller than Q'.
    'P$Q' means 'P is neither greater than nor smaller than Q'.
    'P*Q' means 'P is neither greater than nor equal to Q'.
    'P@Q' means 'P is either greater than or equal to Q'.
    'P&Q' means 'P is not equal to Q'.

    Statements: K @ R, L & B, B ? K
    Conclusions: I. B ? R  II. R * L
    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 :

    K ≥ R -- (i); L ≠ B -- (ii); B ≤ K -- (iii)

    From (iii) and (i), we get B â‰¤ K â‰¥ R => no conclusion. Hence I does not not follow. No relationship between R and L can be determined. Hence II does not follow.

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