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In How Many Ways Can Six Persons Be Seated in a Row?

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Question

In how many ways can six persons be seated in a row?

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Solution

Number of seats available to the first person = 6
Number of seats available to the second person = 5
Number of seats available to the third person = 4
Number of seats available to the fourth person = 3
Number of seats available to the fifth person = 2
Number of seats available to the sixth person = 1
Total number of ways of making the seating arrangement = `6xx5xx4xx3xx2xx1=720`

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Chapter 16: Permutations - Exercise 16.2 [Page 15]

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R.D. Sharma Mathematics [English] Class 11
Chapter 16 Permutations
Exercise 16.2 | Q 22 | Page 15

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