SOLUTION: The tyre of a car has an outer diameter of 30 cm. How many times will the wheel rotate on a journey of 5 km

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Question 1062351: The tyre of a car has an outer diameter of 30 cm. How many times will the wheel rotate on a journey of 5 km
Found 2 solutions by rothauserc, Alan3354:
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
one revolution of the tire = the circumference(C) of the tire
:
C = pi * 30 = 94.2477 approximately 94.25 cm = 0.9425 m
:
1 km = 1000 m
:
5000 / 0.9425 = 5305.0398 approximately 5305 revolutions
:

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The tyre of a car has an outer diameter of 30 cm. How many times will the wheel rotate on a journey of 5 km
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It moves 30pi cm per revolution.
5 km = 5000 meters = 500000 cm