A TICKET TO RIDE
Three economists and three mathematicians were going for a trip by train. Before their journey the mathematicians bought three tickets (they could count to three) and economists only one. Mathematicians were glad their stupid colleagues were going to pay a fine. However when the conductor was approaching their compartment, all three economists went to the nearest restroom. The conductor, noticing that somebody is in the restroom, knocked to the door and in reply saw a hand with the ticket. He checked it and economists saved two-thirds of the ticket price. The next day the mathematicians decided to use the same strategy. They bought only one ticket, but the economists did not buy tickets at all. When mathematicians saw the conductor, they went to the restroom, and when they heard knocking, they handed in the ticket. They did not get it back. Why? The economists took it and went to the other restroom.
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