How do I solve these permutations/combinations? - combination calculator for team
I do not want the answers (would be nice if) the extent of what I am looking for ways to real problems.
I have a computer and know how to get factor ... I also know that there are problems, NPR and NCR ... except I'm confused.
8. How many ways there are 3 books chosen from a box containing 10 pounds?
9. Mark is on vacation. He has visit six places on Tuesday, but he knows he can not have four in one day. How many ways are there to visit four sites chosen to be?
10. How many ways can you arrange the numbers 0 through 9, so 0 is not the first or last place?
11. Like two team captains can be selected from a pool of players from fifteen years ago?
12. Here you will find the number of permutations of the word computer.
13. Ten teams participate in a tournament. How many different arrangements of the first, second and third - the winners are possible?
Thursday, February 18, 2010
Combination Calculator For Team How Do I Solve These Permutations/combinations?
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1 comments:
8] 10C3
9] 6C4
10] 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 * 8
[D 1 and last fixed b4 other]
11] 15C2
12] 8!
13] 10C3 * 3!
[Pick 3 from10 determines the sequence]
Combinations in which the order is not taken into account
Permutations, where he is. Study on the above principle 2c
edit: D could do load [# 13] b, but as 10P3
10C3 * 3! clarify
d Issues
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