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    Question

    If {p2 + (2p2/5)} = 14p , p ≠ 0,

    then find the value of {p2 + (10/p) - 1}.
    A 85 Correct Answer Incorrect Answer
    B 100 Correct Answer Incorrect Answer
    C 65 Correct Answer Incorrect Answer
    D 75 Correct Answer Incorrect Answer

    Solution

    ATQ, Given, p2 + (2p2 /5) = 14p Or, 5p2 + 2p2 = 70p Or, 7p2 = 70 Or, p2 – 10 = 0 Or, p(p – 10) = 0 So, p = 0 or 10 So, p = 10 (Since, ‘p’ can’t be zero) So, {p2 + (10/p) – 1} = {100 + 1 – 1} = 100

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