Lewis Carroll, the famous author of Alice in Wonderland, Through the Looking Glass, The Hunting of the Shark and other wonderful works, was a mathematician whose real name was Charles Lutwidge Dodgson (1832-1898). Here is a problem from his book " A Tangled Tale".
Let S be the set of prisoners, E be the set of those that lost an Eye, H be the set that lost an Ear, A those that lost an Arm and L those that lost a Leg.
Given that n(E) = 70%, n(H) < 75% , n(A) = 80% and n(L) = 85%, find what % at least must have lost all four?
Let S be the set of prisoners, E be the set of those that lost an Eye, H be the set that lost an Ear, A those that lost an Arm and L those that lost a Leg.
Given that n(E) = 70%, n(H) < 75% , n(A) = 80% and n(L) = 85%, find what % at least must have lost all four?
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