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2000 shuffles

Best Answer bonanova, 18 July 2013 - 05:24 PM

Spoiler for Looks like

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Posted 18 July 2013 - 04:46 PM

A shuffle of 2n cards puts the first n cards in the odd positions and the last n cards in the even positions.[For example shuffle (1,2,3,4,5,6) and you get (1,4,2,5,3,6).] Heather has 10 cards, 1-10, Briana has 12 cards, 1-12. Each shuffles her deck 2000 times. "Hey, my deck is back to its original state!"
Who said that, and which card does the other deck have in position #5?

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#2 bonanova



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Posted 18 July 2013 - 05:24 PM   Best Answer

Spoiler for Looks like

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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#3 Anza Power

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Posted 18 July 2013 - 05:39 PM

Spoiler for

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#4 DeathStone0000


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Posted 19 July 2013 - 10:21 AM

Spoiler for my guess


Edit: I just realized how tiresome my solution is.

Edited by DeathStone0000, 19 July 2013 - 10:27 AM.

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