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A bicycle has two wheels of 120 cm and 40 cm in diameters. when the large wheel makes 10 revolutions , how many revolutions does the small wheel make in that time?

A bicycle has two wheels of 120 cm and 40 cm in diameters. when the large wheel makes 10 revolutions , how many revolutions does the small wheel make in that time? Correct Answer 30%

The circumference of big wheel = 120π and small wheel = 40π∴ big wheel is 3 times largers. So, small circle will make 3×10 = 30 revolutions.

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