Correct Answer: C
Explanation:
To find the number of revolutions we need to know the rate of turning and the time duration. Statement (1) gives us only the time, and so the answer cannot be A or D. Statement (2) tells us the rate at which a point on the circumference is moving, which, since we know the dimensions of the wheel, is sufficient to determine the number of rotations per minute. But since we do not know the time, B cannot be correct. But putting (1) and (2) together we have all we need, so the answer is C.