Question

There are 11 stations on railway line . how many single tickets must be printed to cater for every possible booking from one of the 11 stations to any other
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Answer 1

Step-by-step explanation:

From a single station if he travels to 14 stations he needs 14 different tickets.

- Given, 15 stations, so , from each station 14 tickets.

Total ways =15×14=210.hint

Answer 2

Answer:

There are 11 station ,.

From first station ,10 different tickets can be booked to 10 different station

similarly ,

from every station , 10 different tickets can be booked to 10 different station

so

11×10=110

There were 110 tickets must be printed to cater for every possible booking