We’re going to Ibiza

February 20, 2009 at 11:47 am Leave a comment

Every station in the railways issues tickets for every other station (of course, no sense for a station to issue ticket for itself). Now, some new stations are added, and the number of new tickets the railways has to issue goes up by 46. Can you figure out the number of stations before and after the addition of new stations?


Entry filed under: Puzzles.

Time is precious Before and After

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