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Expanding the railroad line (Posted on 2017-12-26) Difficulty: 3 of 5
Each of the n stations on the national railroad sells tickets to all other stations.
If m new stations will be added, 46 additional sets of tickets will be printed.

How many stations are operating now?
How many new stations are to be added?

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
Solutioncomputer solutionsCharlie2017-12-26 13:51:49
spoilerxdog2017-12-26 09:36:49
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