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A train is going from cambridge to londo...

A train is going from cambridge to london stops at nine intermediate stations. Six persons enter the train during the journey with six different tickets. How many different sets of tickets they have had?

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The correct Answer is:
`""^(45)C_(6)`
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MOTION-THEORY AND EXERCISE BOOK-EXERCISE -3
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  4. There are n straight lines in a plane in which no two are parallel and...

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  18. The number of ways of forming the committee, is

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  19. The number of committees in which women are in majority, is

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  20. There are nine different books on a shelf, four red and five are green...

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