Enigma 211: How’s that
2 August 2014
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From New Scientist #1357, 12th May 1983 [link]
The last ball was bowled; the stumps were drawn; and the epic cricket contest between All-Muggleton and Dingley Dell was over for another year. The twenty-two players determined to adjourn to a near-by tavern for refreshment. But they could by no means agree as to which of the four adjacent taverns was most deserving of their favour. At length Mr Pickwick proposed that each player should visit whichever two of the four establishments should best take his fancy; and so it was resolved.
In the ensuing hour just 11 players presented themselves at the Angler, just 11 at the Bull, just 11 at the Crow and just 11 at the Drum. The number who dropped in at both the Angler and the Bull was double the number who imbibed at both the Angler and the Crow and was not surpassed by the number of those who chose any other pair of taverns, which you can mention.
Afterwards it occurred to Mr Winkle to wonder how many players had availed themselves of both the Crow and the Drum. The company was by then too far advanced in high spirits to hit on the right answer and it was agreed to present the problem to you.