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    Question

    The outer radius of a hollow metallic spherical ball is

    12 cm while the thickness of the metal used to make it is 6 cm. Find the volume of the metal used in making this ball.
    A 2168π Correct Answer Incorrect Answer
    B 2016π Correct Answer Incorrect Answer
    C 2161π Correct Answer Incorrect Answer
    D 2168π Correct Answer Incorrect Answer

    Solution

    Inner radius of the ball= (12-6) =6cm Required volume= 4π/3 (12³ -6³)  =4π/3(1728-216) = =4π/3 ×1512=2016π 

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