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(52858) (Show Source): You can put this solution on YOUR website!
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Your answers are correct.
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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
in this site.
Also, you have this free of charge online textbook in ALGEBRA-II in this site
- ALGEBRA-II - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this online textbook under the topic "Combinatorics: Combinations and permutations".
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