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The Cog-Wheel Revolution

Author(s): 
Two cog-wheels, one having 26 cogs, and the other 20 cogs, run together. In how many revolutions of the larger wheel will the smaller gain in 12 revolutions? Milne, Arithmetic 1892 Click here to reveal the answer

"The Cog-Wheel Revolution," Loci (February 2008)

Dummy View - NOT TO BE DELETED