SOLUTION: there are 20 different stations on a single railway line, in how many ways a single ticket can be made so that a person can go from one station to another?
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Question 968735: there are 20 different stations on a single railway line, in how many ways a single ticket can be made so that a person can go from one station to another?
You can put this solution on YOUR website! there are 20 different stations on a single railway line, in how many ways a
single ticket can be made so that a person can go from one station to another?
We can choose the departing station any of 20 ways.
For each of those 20 ways to choose for the departing station,
there are 19 ways which we can choose for the arriving station.
Answer 20*19 = 380 possible tickets.
Edwin
