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The automobile tire of a combat car is 34 in. in diameter. How many R.P.M. must the wheel make to attain a speed of 45 miles per hour?
Solution:
Source: W.C. Eddy's Wartime Refresher in Fundamental Mathematics, 1945, p. 58
The automobile tire of a combat car is 34 in. in diameter. How many R.P.M. must the wheel make to attain a speed of 45 miles per hour?