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Odell and Kershaw run for 30 minutes on a circular track. Odell runs clockwise at 250 m/min and uses the inner lane with a radius of 50 meters. Kershaw runs counterclockwise at 300 m/min and uses the outer lane with a radius of 60 meters, starting on the same radial line as Odell. How many times after the start do they pass each other?

 

 

PLZ HELP

 

 

I NEED YOU CPHILL OR ELECTRICPAVLOV OR ANYBODY ELSE!!!!!!!

 Oct 31, 2019
edited by HIHIBIGBRAIn  Oct 31, 2019
edited by HIHIBIGBRAIn  Oct 31, 2019
 #1
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How may laps does Odell run?    250m/min * 30 min / (pi *d) = 250*30 / (pi *100) = 23.87 laps

                               Kershaw runs  300m/min *30 min /(pi *d) = 300*30/(pi*120)   = 23.87 laps     in the same time

   The pass each other TWICE each lap    and only ONCE for the .87 lap   = 47 times (?)       Not positive....cheeky

 Oct 31, 2019

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