Monday 24 November 2014

On the Line



           It is a small town railway station and there are 25 stations on that line. At each of the 25 stations the  passengers can get tickets for any of the other 24 stations. 

           How many different kinds of tickets do you think the booking clerk has to keep?  

Answer:   At each station passengers can get tickets for any of the other 24 stations and therefore, the number of tickets requited is 25 ×24 = 600.     

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