SOLUTION: A number of small towns set up their own telephone system. Between each pair of towns they stretched a main phone cable. In all, they put up 28 separate cables connecting all of
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Question 212196: A number of small towns set up their own telephone system. Between each pair of towns they stretched a main phone cable. In all, they put up 28 separate cables connecting all of the towns. How many towns were there? Answer by rapaljer(4671) (Show Source):
