A circular rim 28 inches in diameter rotates the same number of inches per second as a circular rim 49 inches in diameter. If the smaller rim makes x revolutions per second, how many revolutions per minute does the larger rim makes in terms of x ?  Choose the correct choice from the following answers.
A) 48pi/x	B) 75x	C) 34.2x	D) 24x	E) x/75
C = (pi)d   C(small): (pi)*28   C(large): (pi)*49   Lets say the time horizon is 60 seconds, so during that time the smaller rim covers a distance of (pi)*28*60 = (pi)*(1680) inches   (pi)*(1680) = (pi)*(49)(x)   pi*(34.2) = pi*(x)   34.2=x   Answer: C. 34.2x
<result>C</result>
A circular rim 28 inches in diameter rotates the same number of inches per second as a circular rim 49 inches in diameter. If the smaller rim makes x revolutions per second, how many revolutions per minute does the larger rim makes in terms of x ?