Since it said that the diameter at the base is 36 feet and a person with an outstretched arm would be 6 feet then 6 times 6 is 36 or you can do the division part which will be 36 divided by 6 and you will still get the same answer: 6
1/3times3=3/3 3/3 is the same as a whole so do 41 and 1/2 times 3 this gets you an answer of 124.5 meaning the unit 124.5x he makes 124.5 rotations per minute
