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 272x 45)/((4/3)x π x (1.5)3) = 7290

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