Another puzzle by Lewis Carroll:
In a group of soldiers, if 70 percent have lost an eye, 75 percent an ear, 80 percent an arm, 85 percent a leg, what percentage, at least, must have lost all four?
Ten. “Adding the wounds together, we get 70 + 75 + 80 + 85 = 310, among 100 men; which gives 3 to each, and 4 to 10 men. Therefore the least percentage is 10.”
January 8, 2013 | Puzzles
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