A motorcycle has a magnet attached to the rim of its front wheel. The front tire has a diameter of 60 cm. A magnetic pickup is attached to the front forks and receives an electronic pulse each time the magnet passes by. How far has the motorcycle traveled when the pickup has received 10 pulses?
a. 600 cm
b. 60 cm
c. 188.5 m
d. 18.85 m
Answer: d
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