Steem Riddle of the Week #11: Two Decks
Steem Riddle of the Week #11: Two Decks
Last weeks riddle was solved by @uber-dragon, congrats to him for claiming the SBD prize! The solution is posted here: https://steemit.com/riddle/@droopy/steem-riddle-of-the-week-10-weighted-balls-solution-revealed-prize-awared
This week, once again, I'm asking that everyone who posts a solution, obfuscate it with ROT13 using this link: http://md5decrypt.net/en/Rot13/ That way others can more easily take part without worrying about spoilers. Only obfuscated posts can win the prize!
This weeks riddle
Two decks of cards are separately and independently shuffled and placed next to each other. The dealer then simultaneously turns over the top card of each deck, then the next card of each deck, and so on, until all the cards have been flipped.
What is the probability that at some point he flips over two of the same card simultaneously, (e.g. he flips the 4 of clubs from both decks on the same flip).
Prize
Again, I'm asking that everyone who posts a solution, obfuscate it with ROT13 using this link: http://md5decrypt.net/en/Rot13/. If your comment isn't obfuscated, you aren't eligible for the prize.
The first person to upvote and comment with a valid obfuscated!!!! solution (as decided by me and only me) prior to this post paying out will win 1SBD! The prize will be paid out right after the rewards from the post are paid.
Don't forget to follow and to check out my past riddles
First off, thanks to everyone for all the support! If you'd like to browse my older riddles you can do so at the links below:
https://steemit.com/life/@droopy/steem-riddle-of-the-week-2-flipping-cards-prize-doubled
https://steemit.com/life/@droopy/steem-riddle-of-the-week-3-alternating-truth-prize-for-first-correct-answer
https://steemit.com/life/@droopy/steem-riddle-of-the-week-4-black-cards-prize-for-first-correct-answer
https://steemit.com/life/@droopy/steem-riddle-of-the-week-5-the-cup-game-prize-for-first-correct-answer
https://steemit.com/life/@droopy/steem-riddle-of-the-week-6-burning-ropes-prize-doubled
https://steemit.com/life/@droopy/steem-riddle-of-the-week-7-midpoints
https://steemit.com/life/@droopy/steem-riddle-of-the-week-8-truth-lies-and-chaos
https://steemit.com/riddle/@droopy/steem-riddle-of-the-week-9-wandering-monster
https://steemit.com/riddle/@droopy/steem-riddle-of-the-week-10-weighted-balls
I want the prize 😜😜
v jvyy tb jvgu bar punapr bhg bs gur ahzore bs pneqf. vs jr ybbx ng gur bccbfvgr, gb znxr gur fhssyr jvgubhg "pbyyvfvbaf", lbh arrq cvpx bar pneq sbe gur svefg qrpx naq cvpx nabgure pneq, qvssrerag sebz gur bar bs gur svefg qrpx. fb ba naq fb sbegu juvpu tvirf lbh 52! * 51!. fvapr gur gbgny ahzore bs fuhssyrf vf 52! *52! jryy gur cebonovyvgl vf 1/52, vs 52 vf gur ahzore bs pneqf.
I don't think this works if you imagine two 3 card decks.
hmm it seems so... but now i am too tired to think :-(
ps: the ROT13 you choose suck with numbers...
yeah I'll use a better one for next time.
i think i used one that worked. I will let you know if i can find it back.
This one looks ok: https://cryptii.com/rot13
Vote for witness @cryptohazard
fb vs v haqrefgnaq guvf pbeerpgyl, lbh'er nfxvat sbe gur cebonovyvgl bs ng yrnfg 1 pneq orvat va gur fnzr cbfvgvba sbe obgu bs gur gjb 52 pneq qrpxf, vapyhqvat nyy pnfrf jurer zhygvcyr be rira nyy pneqf ner va gur fnzr cbfvgvba. va guvf pnfr svaqvat bhg gur rknpg punapr sbe guvf rirag vf zbfg rnfvyl qbar ol fhogenpgvat gur punapr sbe gur bccbfvgr pnfr (nyy 52 pneqf orvat va qvssrerag cbfvgvbaf) sebz 1 (100%). univat n qvssrerag pneq va bar cbfvgvba unf n punapr bs 51/52, jr arrq gung gb or gur pnfr sbe nyy 52 pneqf fb gur svany rdhngvba fubhyq or: cebonovyvgl = 1-((51/52)^52) = 63.568648% ohg v'z abg nyy gung pregnva guvf gvzr nebhaq.
I don't think this works if you imagine two 3 card decks.
Yeah maybe, I was expecting a standard 52 card deck, and even then I'm not too sure.
jryy v guvax v xabj gur fbyhgvba abj. vg'f 63.2% naq nccneragyl fgnlf pbafvfgrag rira vs lbh hfr zber be yrff pneqf fb ng yrnfg ahzore jvfr v jnf cerggl pybfr bevtvanyyl, ohg v bayl xabj qhr gb guvf negvpyr: uggcf://jjj.dhben.pbz/jung-vf-gur-cebonovyvgl-gung-va-gjb-fuhssyrq-qrpxf-ng-yrnfg-bar-pneq-vf-va-gur-fnzr-cbfvgvba-va-obgu-qrpxf fb v pna'g ernyyl pynvz gur cevmr v thrff. vg jnf n ernyyl vagrerfgvat evqqyr abarguryrff!
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