There are 25 stations on the railway line, How many different types of tickets should be printed so that a
passenger can go from any station to any other station?
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There are 25 railway stations on a railway line and we have to find the number of printed single second class tickets in such a manner that a passenger can travel from one station to another station. ... Hence, 600 printed single second class tickets are required to enable a passenger to travel from one station to another.
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