SOLUTION: There are four girls and six boys in a class. They are arranged randomly at 10 seats. i. How many different arrangements are possible? Write five of them. Ans. 10! . ii. How many

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Question 1160447: There are four girls and six boys in a class. They are arranged randomly at 10 seats.
i. How many different arrangements are possible? Write five of them. Ans. 10! .
ii. How many arrangements are possible where girls will be occupied first four seats? Write three of them. Ans. 4! × 6! .
iii. How many ways are there where a particular boy will be occupied the 7th seat? Ans. 9!

Answer by ikleyn(52852) About Me  (Show Source):
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On Permutations and Combinations (and other combinatoric entities), see the lessons
    - Introduction to Permutations
    - PROOF of the formula on the number of Permutations
    - Simple and simplest problems on permutations
    - Special type permutations problems
    - Problems on Permutations with restrictions
    - Math circle level problem on Permutations
    - Introduction to Combinations
    - PROOF of the formula on the number of Combinations
    - Problems on Combinations
    - Problems on Combinations with restrictions
    - Math circle level problem on Combinations
    - Arranging elements of sets containing indistinguishable elements
    - Persons sitting around a cicular table
    - Combinatoric problems for entities other than permutations and combinations
    - Fundamental counting principle problems
    - Miscellaneous problems on permutations, combinations and other combinatoric entities
    - In how many ways N distinguishable objects can be distributed among n different boxes ?
    - Stars and bars method for Combinatorics problems
    - Nice recreational problems on permutations

    - OVERVIEW of lessons on Permutations and Combinations
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