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A train going from Hyderabad to Delhi stops at 9 intermediate stations. Six persons enter into the train during the journey with 6 different tickets of the same class. The number of different tickets they may have, is ???

A train going from Hyderabad to Delhi stops at 9 intermediate stations. Six persons enter into the train during the journey with 6 different tickets of the same class. The number of different tickets they may have, is ???

Grade:12

1 Answers

ashish
46 Points
6 years ago
dear srinivas   
as train start from hyderabad so first passanger fetch the train from first intermediate stations.so he can not take the 
tickets of that station. so now he have 8 option .  the next passenger have 7 option as all tickets are different.
  so answer is 
                         =8*7*6*5*4*3  =10160

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