Gear revolutions

Kevin was on a cyclist trial. Under the hill, he set the front gear to a 42-tooth cog and the rear to a 35-tooth cog. After how many revolutions of the front gear will both wheels reach the same relative position?

Final Answer:

n =  5

Step-by-step explanation:

42=237 35=57 LCM(42,35)=2357=210  x=LCM(42,35)=210 n=x/42=210/42=5



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