A bicycle wheel has a diameter of 0.61m. How many complete revolutions does it make in 1km?  Choose the correct choice from the following answers:
A) 246	B) 522	C) 1408	D) 710	E) 223
1 revolution = 3.14 * diameter.   Number of revolutions in 1km = 1000m / ( 3.14 * 0.61m ) = 522.1. Hence 522 complete revolutions.   Answer 522
<result>B</result>
A bicycle wheel has a diameter of 0.61m. How many complete revolutions does it make in 1km?