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    Question

    ?/343 =

    7/?
    A 29 Correct Answer Incorrect Answer
    B 39 Correct Answer Incorrect Answer
    C 59 Correct Answer Incorrect Answer
    D 49 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ?/343 = 7/? ?2 = 343 × 7 ?2 = 73 × 7 ?2 = 74 ?2 = (72)2 ?2 = (49)2

    ? = 49

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