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    Question

    (98.999)2 - (9.9)2 -

    (14.9)2 = ? What approximate value should come in place of the question-mark(?) in the following question (You are not expected to calculate the exact value).
    A 9386 Correct Answer Incorrect Answer
    B 9476 Correct Answer Incorrect Answer
    C 9686 Correct Answer Incorrect Answer
    D 9586 Correct Answer Incorrect Answer
    E 9286 Correct Answer Incorrect Answer

    Solution

    (98.999)2┬а- (9.9)2┬а- (14.9)2┬а= ? ? = 992┬а- 102┬а- 152┬а ? = 9801 - 100 - 225 ? = 9476

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