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    Question

    The number of lead balls, each 3 cm in diameter, that

    can be made from a solid lead sphere of diameter 42 cm is:
    A 7244 Correct Answer Incorrect Answer
    B 2744 Correct Answer Incorrect Answer
    C 2742 Correct Answer Incorrect Answer
    D 4722 Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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