Perimeter of the back wheel = 9 feet, front wheel = 7 feet on a certain distance, the front wheel gets 10 revolutions more than the back wheel .What is the distance?

2 Answers on this Question

1. Let the revolutins made by bigger wheel is: x
   then revolution by smaller wheel will be: x+10
   Now, the distance covered by both wheels will be same.
   So,
   7(x+10)=9x
   7x+70=9x
   70=2x
   35=x
   so distance travelled=9*35=315
   or 7*45=315

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2. Let the revolutins made by rear wheel be: x
   then revolution by front wheel will be: x+10
   Now, the distance covered by both will be same.
   So,
   7(x+10)=9x
   7x+70=9x
   70=2x
   35=x
   So the total distance is 7*35 i.e. 315 feets.

   Reply