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Question:

On a bicycle there are 30 teeth on the gear sprocket connected to the pedals, and 10 teeth on the sprocket connected to the rear wheels. If you pedal the bike 12 times, how many times will the rear wheel turn?

A 36 times
explanation

Since there are 30 teeth on the pedal sprocket, but only 10 teeth on the rear wheel, each revolution of the pedal will turn the rear wheel 3 times. So 12 revolutions will turn the rear wheel 36 times.

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Comments

Wyatt DeMille

10 months ago

awesome for practicing

Ale De La Garza

10 months ago

Great feedback afterwards when I get the questions wrong. It has really helped.

Briar Hare

10 months ago

definitely worth it

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