SOLUTION: A CAR TRAVELLED 1.98KM. FIND THE NUMBER OF REVOLUTION MADE IF THE RADIUS OF WHEEL IS 105 CM

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A CAR TRAVELLED 1.98KM. FIND THE NUMBER OF REVOLUTION MADE IF THE RADIUS OF WHEEL IS 105 CM      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1066417: A CAR TRAVELLED 1.98KM. FIND THE NUMBER OF REVOLUTION MADE IF THE RADIUS OF WHEEL IS 105 CM
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1.98 km = 1980 meters.
----
105 cm = 1.05 meters
Circumference = 2*pi*r = 2.1*pi meters
------------
Revolutions = 1980/(2.1*pi)
===================
PS 2.1 meter diameter is a big wheel.