Wheel 1 (r = 18") and wheel 2 (r = 6" ) are on testing ground for robot wheels. Wheel 2 travels at 20 RPM (revolutions per minute) for 12 minutes. If wheel 1 travels the same distance in 4 minutes, how many revolutions did wheel 1 make and what was its speed in RPM?
TJ test prep practice problems for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.