Avi's pet hamster Chubby loves to run in his hamster wheel. During one "race", Avi counts 100100 100 100 rotations of the wheel. She wants to know how far Chubby ran, so she measures the diameter of the wheel and finds that it is 8 inches8 / text{ inches} 8 inches 8, space, i, n, c, h, e, s. How far did Chubby run?

Question

Kelvin Reeves

Mathematics

17 December, 15:37

Avi's pet hamster Chubby loves to run in his hamster wheel. During one "race", Avi counts 100100 100 100 rotations of the wheel. She wants to know how far Chubby ran, so she measures the diameter of the wheel and finds that it is 8 inches8 / text{ inches} 8 inches 8, space, i, n, c, h, e, s. How far did Chubby run?

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Andrew Huynh · Answer 1

He ran 2512 inches.

The distance around the wheel is given by the circumference. The formula for circumference is C=πd. Using 3.14 for π and 8 for d, we have 25.12 in for the circumference. Since he ran 100 rotations, we do 100*25.12 = 2512 in.