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GMAT 2010
GMAT- Quantitative Section Q#48: I’ve got two wheels on my stunt bike. One has a diameter of 20 cm and the other of 16. I want the wheels to rotate at the same cm/minute ratio so that I don’t fly off my stunt bike and die. If the large wheel makes r revolutions a minute, how many revolutions does the small wheel make in an hour?
24r
75r
48r
48 * Pi * r
(64 * Pi)/3
