What is the number of 360-degree rotations that a bicycle wheel made while rolling 100 meters in a straight line without slipping?
(1) The diameter of the bicycle wheel, including the tire, was 0.5 meter.
Since we know the diameter, we can determine the number of 360-degree rotations. If we actually solved: 0.5 * 3.14 = 1.57
100 / 1.57 = approximately 63.7 rotations.
SUFFICIENT.
(2) The wheel made twenty 360-degree rotations per minute.
Clearly not enough information -- time is irrelevant. INSUFFICIENT.
Answer is A.
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