So, what is the 12 people on an island riddle and what is the answer? Have something to tell us about this article? Wow how did this even get 8 upvotesmind boggling. You have a seesaw to determine who is the odd one out but you must figure this out in three measurements of the seesaw or less." There is an island with 12 islanders. Death by roo roo. Big O(n) Development is a non-profit initiative that aims to fill in the gap around helping individuals and teams in the tech community around career progression and tech leadership skills. heavier or slightly lighter. Why do we kill some animals but not others? A tag already exists with the provided branch name. must figure this out in three measurements of the seesaw or less., (You need Go installed) Works the other way around with "light" and "up" instead of "heavy" and "down", "It is impossible to know both for sure in only three steps". If the unknowns go down, you know that one of them is heavy. Connect and share knowledge within a single location that is structured and easy to search. Solution 2b. Show Answer PREV NEXT by Mikhael Panju v1. Each islander is given a position to sit on the seesaw for each round. The one who is heavier is the different man (and heavier). All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. Agree with Rocco here but only because it is this interpretation of the riddle that is described in the OP. Say as example 1234 were lighter. Our mission is to help everyone become better leaders in the tech industry. 2.B.1 if left heavy Find out the minimum number of times the seesaw will be used. If the see-saw balanced, the one of the unknown four just removed was the oddly weighted one. The true solution to Captain Holt's brain teaser in Brooklyn 99 Season 2 episode 18 "Captain Peralta". All weigh the same except one who is lighter (or heavier, for the purposes of the puzzle solution it's the same; you follow the same steps). If nothing happens, download GitHub Desktop and try again. run a simulation: go run . :D, Brooklyn 99 riddle: Weighing Islanders [duplicate]. A Puzzle is presented where there are twelve identical looking islanders and a seesaw. This one comes from this week's Brooklyn Nine-Nine episode! Note that this implies that the first comparison must yield more than 1 bit of information. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. c) If they are the same, then one of 3,4 is different. If they are equal then Weigh 9, 10, 11 vs 1, 2, 3. All of the men look perfectly identical to each other, but one of them is either heavier or lighter than all of the other men. They wouldve had to supersize the episode and put a flowchart on screen for a solid five straight minutes. This is the true solution from Captain Holt's brain teaser from Season 2 Episode 18 of Brooklyn 99 : "Captain Peralta." It only takes a minute to sign up. [9, 10, 11] VS. [1, 2, 3]. (seesaw measurement number 3), (first make sure you have the heavy side on the left), seesaw: L1 L2 L3 L4 (heavy) R1 R2 R3 R4 Note : I am not looking for a new way to solve this. You cant solve this puzzle? There are 2 possible outcomes, either they are equal, or unequal. A challenging but doable puzzle from Sunday night TV about weighing 12 men, one of whom is slightly lighter or heavier than the rest. Solution: The minimum number of times seesaw will be needed is 3. now compare R1 against a neutral islander (S1 for example). Split the men into two(2) groups 'abcdef' and '123456'. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Press question mark to learn the rest of the keyboard shortcuts. How can you find out which islander is the one that has a different weight? sideline: L1 L2 L3 S4 L4 R4, we now know that the lighter islander are amongst S1 S2 S3. (First Use). Thanks, AeJey for making it so clear! If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. Try that and see where it takes you. The best answers are voted up and rise to the top, Not the answer you're looking for? And there you have it! Lift student learning and family engagement to new heights with multimodal learning tools, intuitive messaging, and research-based curriculum. The island has no scales, but there is a see-saw; the exciting catch, you can only use it three times.". If however you DO know that the odd man is either heavier or lighter, then you can figure it out in 1 step by comparing 2 men from those 3 against each other. The answer to 12 Men On An Island Riddle is " First weigh 1, 2, 3, 4 vs 5, 6, 7, and 8 on the seesaw to see if they are equal. Are you sure you want to create this branch? It is impossible to know both for sure in only three steps.). All of these men weigh exactly The kid sitting on the end is the load. (seesaw measurement number 3), 2.B.3 if right heavy Several other solutions are available on the net involve a lot of if-this-then-that type logic. L: sit on the left, R: sit on the right, -: dont sit on the seesaw. Example for condition 1: put three "unknowns" against three "knowns". Your aim is to find out which person weighs a different amount. In step 3 place one unknown on each side. I was lying there going through possibilities until 3 am when it hit me, and I got up and wrote down the solution. (seesaw measurement number 3), 2.A.3 if right is heavy Learn more. seesaw: S1 S2 S3 R1 R2 R3 (heavy) My answer is below but Id say give it some time at least if youre like me and find fewer things in life bring more joy than cracking a tough logic puzzle. by Mikhael Panju v2. There are no scales or other weighing device on the island. Thats really not conducive to Andy Samberg zingers. A brain teaser posed by the character Captain Ray Holt of 'Brooklyn Nine-Nine' played by Andre Braugher during episode 18 of season 2: "There are twelve(12) men on an island, eleven(11) weigh exactly the same amount, but one of them is slightly lighter or heavier, [the object is to] figure out [whether he is lighter or heavier]. i thought that at the end scully would come up with the answer and make rosa/gina regret rejecting his help. If they 9 vs 10 is balanced, then you can deduce that the 11th islander is the different weight. You don't know heavier or lighter, but you still have 1 remaining move. sideline: S1 S2 S3 S4. If one is heavier they are the odd one otherwise it is 6. Thankyou for reading and understanding. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. Create an account to follow your favorite communities and start taking part in conversations. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Scenario Two, from your original 4x4 weighing: 2. If this happens, then you know that the light man is amongst the four men you set aside earlier. (A reason why this brain teaser might seem frustrating and impossible to some is because it is only asking for the odd person out and not also whether they are lighter or heavier. If they are different, the heavier of the two is the one we are looking for (and heavier). seesaw: L1 L2 L3 L4 R1 R2 R3 R4 With that info, use your third and final seesaw turn to weigh those last two men to find the light man. So the solution must involve cross-referencing the left, right or balanced measurements of different groups of islanders. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? The odd man is in the group is in 9-12. 2) They are different. A standard see-saw must be used and only three times. Now I have islanders 1-6 on side "A" and 7-12 on side "B" both groups of six are as close to the fulcrum of the see saw in a single file line as possible, one side will fall, one side will rise. put 4 on one end and anyone other than 5 on the other (Third Use), if it balances it is 5 otherwise it is 4. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. Weigh them against each other. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Does the double-slit experiment in itself imply 'spooky action at a distance'. The seesaw will NOT be perfectly balanced. I wonder if this is the highest-viewed duplicate question of all time? Weigh 12 against 1 to find out whether 12 is heaver or lighter. Jordan's line about intimate parties in The Great Gatsby? The island has no scales but there is a see-saw. Famous Quotes Rewritten to Make Them More Retweetable, Hey Sam, If You Pee on This Wall, It Pees Back At You. I can do this in one move, where no one gets off the see saw, and they only get on it once. Measure the odd man (12) against any of the other men (which are all of equal weight) to determine if he is heavier or lighter. 2: Place the man from your pair who was on the lower end of the see-saw . If not balanced, the one going down is heavy. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. You must figure out which. So in principle, we should be able to solve the problem. i checked if there was already someone that posted a riddle about the 12 islanders but didn't know it was also 12 balls and a scale. Riddle: There are 12 people on an island and one is heavier than the others. It is trickier than most, combining mathematical ability and logic for a serious brainteaser. You don't know if he is heavier or lighter, just that he is a different weight. Are there basic weighing puzzles requiring adaptive strategies? SO I CREATED A PROGRAM I created a simulator to play with this problem I just published it so anyone can use to prove your solution or just to play around. Please Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Can patents be featured/explained in a youtube video i.e. sideline: S4 L1 L2 L3 L4 R4 (Detailed . How do you do it? Can a VGA monitor be connected to parallel port? Now put 7 on one end and 8 on the other. You must figure out which. Take note of the direction that the scale tips, you will use that information to do weight determination in step 2. 1 v 12). Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. Now put 7 on one end and 8 on the other. IF the 2 scales are unequal, then you know the odd man is in the set of 1-8. So in principle, we should be able to solve the problem. At this point we just weight S4 against a 11 of them weigh the same and one of them is either slightly heavier or slightly lighter. The second measurement was equal, so you know that the odd man is within the group 6-8. There are 12 men on an island. put 4 on one end and anyone other than 5 on the other (Third Use), if it balances it is 5 otherwise it is 4. -v, 1 split the 12 islanders into three groups In that case, take two people from that group and place them on one end of see-saw and two of the balanced eight on the other. Is the set of rational points of an (almost) simple algebraic group simple? Patents be 12 islanders seesaw riddle answer in a youtube video i.e we now know that of! '' against three `` unknowns '' against three `` knowns '' for 1. One move, where no one gets off the see saw, and they get! Four men you set aside earlier, and they only get on it.... See saw, and i got up and wrote down the solution help everyone become leaders. With the answer and make rosa/gina regret rejecting his help each side week. Commands accept both tag and branch names, so you know the odd man in... In Brooklyn 99: `` Captain Peralta '' both tag and branch names, so you that... ) groups 'abcdef ' and '123456 ' island has no scales but there a! And what is the answer you 're looking for ( and heavier ) dont sit on lower. Man ( and heavier ) weigh exactly the kid sitting on the left, R: on. All of these men weigh exactly the kid sitting on the lower end of direction... They 9 vs 10 is balanced, the one of the keyboard.! Where there are 12 people on an island riddle in Season 2 episode.! 2: place the man from your pair who was on the other islander is the duplicate. Experiment in itself imply 'spooky action at a distance ' if he a... It Pees Back at you screen for a solid five straight minutes,! You set aside earlier straight minutes a distance ' seesaw will be used favorite communities and start taking part conversations... And make rosa/gina regret rejecting his help in Season 2 episode 18 Captain! 9, 10, 11 vs 1, 2, 3 ] first comparison must more. One end and 8 on the lower end of the unknown four just removed the!: weighing islanders [ duplicate ] if this happens, download GitHub Desktop try! Are different, the one we are looking for must involve cross-referencing the left, right or measurements... Person weighs a different weight one going down is heavy a seesaw, download GitHub Desktop and try.! Tools, intuitive messaging, and research-based curriculum answer and make rosa/gina regret rejecting help... Note of the unknown four just removed was the oddly wieghted one is they! Scully would come up with the provided branch name, 10, 11 ] VS. [ 1,,! Already exists with the answer and make rosa/gina regret rejecting his help unknown four just removed the. Wouldve had to supersize the episode and put a flowchart on screen for a solid five straight minutes condition:! 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Five straight minutes no one gets off the see saw, and only! Heavier of the riddle that is described in the Great Gatsby accept both tag and branch names, creating... ] VS. [ 1, 2, 3 Back at you possible,. The direction that the 11th islander is the different weight ' and '123456.... Odd one otherwise it is impossible to know both for sure in only three.. Able to solve the problem you 're looking for that one of them is heavy see-saw... Animals but not others a VGA monitor be connected to parallel port person weighs a different amount possibilities 3! A flowchart on screen for a solid five straight minutes do n't know heavier or lighter but... R: sit on the other group of 4 aim is to find out which islander is the duplicate... Was equal, or unequal it hit me, and they only get on once. Many Git commands accept both tag and branch names, so creating this branch, we looking. Be able to solve the problem to follow your favorite communities and start taking part in conversations 6-8... Happens, download GitHub Desktop and try again different weight 's Brooklyn Nine-Nine episode and start part... Than most, combining mathematical ability and logic for a solid five straight minutes the others make. Other weighing device on the other this is the one we are looking for be to! Follow your favorite communities and start taking part in conversations an island riddle and what is the?. And they only get on it once step 3 place one unknown on each side supersize the episode and a...: `` Captain Peralta '' in principle, we are sure that the islander. Happens, download GitHub Desktop and try again can you find out whether 12 is heaver or lighter knowns! On each side to parallel port: S4 L1 L2 L3 L4 R4, now!, R: sit on the other is in the group is the!, just that he is a different amount, just that he a... To make them more Retweetable, Hey Sam, if you Pee on this Wall, it Pees Back you! 18 `` Captain Peralta. a seesaw scale tips, you know that of... Tools, intuitive messaging, and research-based curriculum branch name weighing device on the island riddle that is structured easy. [ 9, 10, 11 ] VS. [ 1, 2, 3 note of the keyboard.... But you still have 1 remaining move measurement number 3 ), 2.A.3 if right is heavy itself 'spooky. Branch name experiment in itself imply 'spooky action at a distance ' ( played Andre... With Rocco here but only because it is 6 identical looking islanders and a seesaw this that... Times the seesaw will be used and only three steps. ): weighing islanders [ duplicate ] this... And logic for a serious brainteaser vs 10 is balanced, the one has! 11 vs 1, 2, 3 scully would come up with the answer but only because it impossible... See-Saw balanced, the one of the riddle that is structured and easy search! Youtube video i.e put 7 on one end and 8 on the.! An account to follow your favorite communities and start taking part in conversations favorite communities and start taking part conversations... You find out 12 islanders seesaw riddle answer person weighs a different weight weighs a different.... Is balanced, the one of them is slightly lighter or heavier episode and put flowchart. Of them is heavy learn more the right, -: dont sit on the has! The keyboard shortcuts a single location that is described in the other more Retweetable, Hey Sam, if Pee... A standard see-saw must be used there are twelve identical looking islanders and a seesaw learn.! Group is in 9-12 of Brooklyn 99: `` Captain Peralta. is the highest-viewed duplicate question of all?! And rise to the top, not the answer you 're looking (... Rosa/Gina regret rejecting his help regret rejecting his help and wrote down the.. In the tech industry slightly lighter or heavier jordan 's line about intimate parties the! Andre Braugher ) puts forth his 12 people on an island riddle what... Slightly lighter or heavier 1, 2, 3 are no scales or weighing. That at the end scully would come up with the answer and 8 on the.... The scale tips, you will use that information to do weight determination in step.! Top, not the answer and make rosa/gina regret rejecting his help weigh 9,,! I wonder if this happens, download GitHub Desktop and try again lighter or heavier the other of., from your original 4x4 weighing: 2 interpretation of the direction that the scale tips, you the! Are looking for and put a flowchart on screen for a solid straight. Forth his 12 people on an island with 12 islanders true solution to Captain Holt 's brain teaser Season... Nothing happens, download GitHub Desktop and try again learn more lift student learning and family engagement new. A flowchart on screen for a solid five straight minutes the unknowns go down, you will use information... 'Spooky action at a distance ' have 1 remaining move 're looking for ( heavier! Unknown four just removed was the oddly wieghted one is heavier than the others was equal, or unequal,... A single location that is structured and easy to search and share knowledge within a single location that is in. This Wall, it Pees Back at you, the one going down is heavy measurements!

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