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In how many ways can 10 people line up at a ticket window of a cinema hall?
Wiki User
∙ 14y ago
If you imagine there are 10 spots on the floor in a line where people can stand, then the first person has 10 choices of where to stand.
The second person has 9 choices since the first person is already on one of the spots.
The third person has 8 choices. And so on until the last person has no choice.
We can now mulitply the numbers together. 10x9x8x7x6x5x4x3x2x1. This is called a factorial (where you multiply all of the consecutive numbers together from 1) and it is written as 10!.
This means there are 3,628,800 ways of arranging the 10 people
Wiki User
∙ 14y ago
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WANT A HT NO?
hall ticket number..... means the numbr of the ticket of examination
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