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    Question

    How many spherical bullets can be made out of a lead

    cylinder 45 cm high and 27 cm radius, each bullet being 3 cm in diameter?
    A 7290 Correct Answer Incorrect Answer
    B 288 Correct Answer Incorrect Answer
    C 1125 Correct Answer Incorrect Answer
    D 24000 Correct Answer Incorrect Answer

    Solution

    Volume of cylinder = π x r 2 x h = π x 272 x 45 & Volume of each bullet = (4/3) x π x (1.5)3 So number of bullets = Volume of cylider/volume of 1 bullet = (π x 272 x 45)/((4/3) x π x (1.5)3 ) = 7290

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