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    Question

    What will come in place of (?) in the given expression.

    (15) ² - (13) ² = ?
    A 56 Correct Answer Incorrect Answer
    B 45 Correct Answer Incorrect Answer
    C 75 Correct Answer Incorrect Answer
    D 65 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    = 225 - 169
    = 56

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