# Search:

Tag: combination

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1. ### Why is the sum of (nCk)*(mCr-k) equal to (m+n)Cr?

• Replies: 11
• Views: 619
Last Post: 09-24-2018 09:11 AM
by Dr.Peterson
2. ### Need help on this combination for my email password ("chimpanzees", w/ "chimp" known)

• Replies: 3
• Views: 557
Last Post: 03-17-2018 01:00 AM
by rlb
3. ### Combinatorics: 10 scarfs, 8 shirts and 9 hats to 4 people

• Replies: 3
• Views: 837
Last Post: 03-12-2018 03:28 PM
by Iva
4. ### Combinations/Permutations Math Problem: 20 people wish to make up a hockey team.

• Replies: 2
• Views: 507
Last Post: 03-06-2018 09:06 AM
by SophieFred316
5. ### Combinations/Permutations where only certain elements in series can vary

• Replies: 2
• Views: 440
Last Post: 11-21-2018 05:41 AM
by n00b123
6. ### Permutations and Combinations: chosing 3 consonants from BANANA SPLIT

• Replies: 8
• Views: 1,842
Last Post: 12-30-2017 04:15 AM
by Miss_Hickey
7. ### game of chance: You must pill 2 marbles of same color from bag of 10 marbles...

• Replies: 1
• Views: 759
Last Post: 12-04-2017 02:35 PM
by tkhunny
8. ### Probability: How many train stations if there are 552 tickets for different journeys?

• Replies: 3
• Views: 1,003
Last Post: 11-19-2017 11:27 PM
by mmm4444bot
9. ### Combination: The game of euchre uses only 9s, 10s, jacks, queens, kinds, and aces...

• Replies: 2
• Views: 843
Last Post: 10-02-2017 10:57 PM
by wolfyy
10. ### Help with combination/permutation problem?

• Replies: 1
• Views: 760
Last Post: 09-24-2017 07:25 PM
by tkhunny
11. ### Combination Q: Prove that mc2 = 3.n+1c4 , where m = nc2

• Replies: 1
• Views: 1,950
Last Post: 05-22-2017 02:13 AM
by ksdhart2
12. ### Locker Combo uses 3 numbers w/ consec. numbers different; find least number of....

• Replies: 4
• Views: 2,184
Last Post: 09-30-2016 02:34 PM
by pka
13. ### Probability - combinations

• Replies: 6
• Views: 1,527
Last Post: 05-27-2016 11:20 AM
by stapel
14. ### Equation to be used for all combos: Georgia is purchasing cookies for her classmates.

• Replies: 0
• Views: 2,399
Last Post: 01-12-2016 09:41 PM
by lklak
15. ### Permutation and Combination- The harderst.

• Replies: 2
• Views: 1,201
Last Post: 12-02-2015 09:19 AM
by stapel
16. ### Combination problem: Group of 41 people..

• Replies: 3
• Views: 2,109
Last Post: 11-26-2015 12:02 PM
by stapel
17. ### Combinatorics, sets

• Replies: 5
• Views: 2,948
Last Post: 03-11-2015 07:38 PM
by stapel
18. ### Difficult Combination Question

• Replies: 10
• Views: 7,258
Last Post: 11-07-2014 05:39 PM
by Ishuda
19. ### Combinations in soccer games results

• Replies: 3
• Views: 5,114
Last Post: 12-16-2013 07:27 PM
by JeffM
20. ### Probability of dep/indep events

• Replies: 1
• Views: 1,361
Last Post: 08-24-2013 02:00 PM
by DrPhil
21. ### Combination problem

• Replies: 22
• Views: 8,643
Last Post: 02-04-2013 08:13 PM
by DrPhil
22. ### Writing book on hairstyles, number problem

• Replies: 1
• Views: 1,402
Last Post: 12-02-2012 05:06 PM
by JeffM
23. ### Game algorithm

• Replies: 2
• Views: 2,760
Last Post: 07-16-2012 10:36 AM
by mna
24. ### Permutation and Combination

• Replies: 3
• Views: 2,530
Last Post: 04-01-2012 06:45 PM
by guest17
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