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Discussion :: Decimal Fraction

  1. The [removed]11.98 x 11.98 + 11.98 x x + 0.02 x 0.02) will be a perfect square for x equal to:

    2. A.

    0.02
    B.

    0.2
    C.

    0.04
    D.

    0.4

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    Answer : Option C

    Explanation :

    Given expression = (11.98)2 + (0.02)2 + 11.98 x x.

     

    For the given expression to be a perfect square, we must have

     

    11.98 x x = 2 x 11.98 x 0.02 or x   = 0.04

     

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