There are 18 stations between Hyderabad and Bangalore.
Question 1:
There are 18 stations between Hyderabad and Bangalore. How many second class tickets have to be printed, so that a passenger can travel from any station to any other station?
A.200
B.190
C.95
D.380
FeedbackThe total number of stations = 20 From 20 stations we have to choose any two stations and the direction of travel (i.e., Hyderabad to Bangalore is different from Bangalore to Hyderabad) in 20P2 ways. 20P2 = 20 * 19 = 380.
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