Say as example 1234 were lighter. We know {9,10,11,12} all weigh the same. 42 votes, 14 comments. 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. If you found that the second group weigh was unequal, then weigh 9 vs 10. The island has no escapes, but there is a see-saw. [10, 11, 12, 1] VS. [2, 3, 4, 5]. The See-Saw. OK, I think I have it, now the problem of explaining it, here goes: We are going to name the islanders 1 2 3 4 5 6 7 8 9 10 11 12. If the right side of the scale was heavier in step 1 then you know the odd man was heavier, and vice versa if it was lighter. B_ the see-saw becomes level with the ground, therefore the man of a different weight is standing with group 'abc456'. 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. But this is simple! [9, 10, 11] VS. [1, 2, 3]. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. I was lying there going through possibilities until 3 am when it hit me, and I got up and wrote down the solution. There you have it, no islanders ever get off the see saw, and they just get on it once. Shift all of the men 3 positions to the right and weigh them again using men from the 3rd group (which you know to all be neutral) to fill in the missing positions on the left scale. Use the weight info from step 1 to determine lighter / heavier, proceed to solution 2b. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. This page contains affiliate links, which means we may earn a small amount of money if a reader clicks through and makes a purchase. (We could always relabel the men so that this is true). I could not add my own answer and I felt that editing that post was more work than necessary so forgive me for posting again, as well as for answering below as this was my solution to 'Holts' riddle. Use the {{3 remaining with known weight solution}} from solution 1a. Without loss of generality suppose that 1,2,3,4 is heavier than 5,6,7,8. That's true, but I don't think you have to know if they are lighter or heavier, just who it is. And there you have it! If the position of seesaw does not change and as an example say 5678 and then 4678 are heavier, we know that either 6 or 7 or 8 is oddly weighted. @Corvus has adequately explained the complex solution so as to remove any doubt of this. Are there basic weighing puzzles requiring adaptive strategies? See our massive list below, or chat to other parents in our forum. All of these men weigh exactly Which brings us to Use 3 - Place both new groups 'def123' and 'abc456' on the teeter-totter again as we did in the beginning. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. Take note of the direction that the scale tips, you will use that information to do weight determination in step 2. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. If the seesaw reverses, ether 4 or 5 is the oddly weighted one. Comparing (1,2,3,4) to (5,6,7,8) does exactly this. Put any two groups on each side of the see-saw. :D, Brooklyn 99 riddle: Weighing Islanders [duplicate]. Thus we need to log224 bits of information to solve the puzzle. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? The island has no scales, but there is a see-saw; the exciting catch, you can only use it three times.". 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. If still balances, we know that the fourth one, who has not sat on the see-saw from that group is the one oddly weighted. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. How do you figure out which one is heavier? I believe it was in. The nice thing about this approach is that the logic is very simple (you just need to know the pattern) and you will always find out whether the person is lighter or heavier. Press question mark to learn the rest of the keyboard shortcuts. How does a fan in a turbofan engine suck air in? (First Use). No Scenarios, No Cases, Just The Simple Answer.Instagram: https://www.instagram.com/lifeprojxFacebook: https://www.facebook.com/lifeprojx sideline: S4 L1 L2 L3 L4 R4 We are trying to find which of them is a non-standard weight or x = one of them. You can only use it three times.. ie. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. if balanced it is L4 - else it is the heavier of L2 and L3. {{#media.media_details}} {{#media.focal_point}}, First weigh 1, 2, 3, 4 vs 5, 6, 7, 8 on the seesaw. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. Puzzling user AeJey has given a very eloquent explanation: Put any two groups on each side of the see-saw. If 9 and 10 are different, the different man is the lighter of the 9,10 comparison if 9,10,11 was lighter than 1,2,3, (and he is lighter); the different man is the heavier of the 9,10 comparison if 9,10,11 was heavier than 1,2,3 (and he is heavier). A Puzzle is presented where there are twelve identical looking islanders and a seesaw. Thanks, AeJey for making it so clear! (seesaw measurement number 3). A tag already exists with the provided branch name. How is "He who Remains" different from "Kang the Conqueror"? The answer isnt TV friendly. The only case where you dont is 1.1.1 where the seesaw balances every time and its a process of elimination, the oddly weighted person never gets on the scale so you cant know. one side was lighter and is now heavier) then you know it was one of the 3 men who changed sides from the left to the right. Weigh 9, 10, 11 vs 1, 2, 3. Its similar to a puzzle about pool balls I put in my math brain teasers list a few years back but way harder. Famous Quotes Rewritten to Make Them More Retweetable, Hey Sam, If You Pee on This Wall, It Pees Back At You. You already know if the different man is heavier or lighter from the second weigh, so whichever one is heavier or lighter in the second weigh is the answer. The exciting catch? we weigh S1 against S2; if balanced it is S3 - else it is the heavy of S1 and S2. The island has no scales but there is a see-saw. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. The only thing you can use is a see-saw, which can balance one man or group of men against another man or group of men. Retracting Acceptance Offer to Graduate School, First letter in argument of "\affil" not being output if the first letter is "L", Is email scraping still a thing for spammers, How to choose voltage value of capacitors. seesaw: R1 L2 L3 L4 (heavy) L1 S2 S3 S4 c) If they are the same, then one of 3,4 is different. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Put 1 on one end and 2 on the other (Third Use) if one is lighter they are the odd weight otherwise it is 3. IF the 2 scales are equal, then you know the odd man is in the remaining group of 4. Learn more about Stack Overflow the company, and our products. Proceed to solution 2a. 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. now compare L2 and L3. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. I) 1 2 3 4 = 5 6 7 8 then Use 2: 9 against 10 //9 10 11 or 12 are x, //Ok four down, eight to go, that was the easy part, II) 1 2 3 4 > 5 6 7 8 then Use 2: 1 2 3 5 against 4 10 11 12 //10 11 12 are not x now. - GitHub - hellgrenj/12-islanders: Me and my wife sat down to try and s. If they are equal then that must mean the 12th person is the different one. sideline: S1 S2 S3 S4 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. For example person F will sit on the right, then stand out, then on the left. There are 12 men on an island. How can you find out which islander is the one that has a different weight? Use the weight difference from step 1 to determine heavier lighter. Can patents be featured/explained in a youtube video i.e. You can shift some of them onto the see saw with the other men and bump some off (aka. Weapon damage assessment, or What hell have I unleashed? All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. You signed in with another tab or window. 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]. 1 v 12). Use Git or checkout with SVN using the web URL. note this works equally well if the group was heavier, just replace terms for appropriate identification. However only three measurements are allowed. Solution 2c. If they are equal then Weigh 9, 10, 11 vs 1, 2, 3. Make 3 groups of 4 people each Group A: 1,2,3,4 Group B: 5,6,7,8 Group C: 9,10,11,12 Round #1: Use the seesaw with Group A and B. 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). heavier or slightly lighter. It is impossible to know both for sure in only three steps.). There was a problem preparing your codespace, please try again. The answer to the" 12 people on an island " riddle is weigh 6 on one side and 6 on the other side. Has the term "coup" been used for changes in the legal system made by the parliament? So, what is the 12 people on an island riddle and what is the answer? Weigh 1 against 2. Each step here corresponds to one weighing. L: sit on the left, R: sit on the right, -: dont sit on the seesaw. If not balanced, the one going down is heavy. In other news,did Pete Davidson tattoo a kid? The essence of the riddle is: "There are 12 men on an island. Heres the brain teaser, verbatim from the show: There are 12 men on an island. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. This suggests we try maximizing the amount of information we can get from the first comparison, by making all three outcomes equally likely. Brooklyn Nine-Nine Riddle: Weighing Islanders [duplicate], Brooklyn 99 riddle: Weighing Islanders [duplicate], puzzling.stackexchange.com/questions/9979/, puzzling.stackexchange.com/questions/183/. Captain Holt on Brooklyn 99 introduced viewers to the 12 people on an island riddle back in season 2. The riddle: There are 12 islanders on an island. (Detailed . At this point we just weight S4 against a Say as example 1234 were lighter. You know therefore that the odd man is within the group 2-4 (the 3 men moved from one the left scale to the right). :p, haha yeah loved the episode! now compare R1 against a neutral islander (S1 for example). I later went back and refined it a little, so here it is. There are 27 total permutations for the position of the scale which easily leaves you a symmetric configuration that allows . sideline: L1 L2 L3 S4 L4 R4 Suppose the previous two groups were 1234 and 5678, shuffle them to create a new group of 5 and 4678 then three of the third four say abcd get on with 5 to get as an example abc5 and 4678. Note : I am not looking for a new way to solve this. sideline: S1 R2 R3 R4, we know there is a heavy islander amongst L2 L3 L4 What is the arrow notation in the start of some lines in Vim? Start off by weighing 4 against 4, setting the other 4 aside completely. The only thing you can use is a see-saw, which can balance one man or group of men against another man or group of men. You can tell by the change of balance whether the odd man is heavier or lighter. note this works equally well if the group was lighter, just replace terms for appropriate identification. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. If nothing happens, download Xcode and try again. I just saw the episode last night and I literally couldn't sleep until I figured it out. I gave each of the 12 men a letter, A-L. Can You Solve the Brain Teaser of the 12 Men and a See-Saw? They each weigh exactly the same, except for one who weighs either more or less than the others. For clarity, I will also number the islanders 1-12, because the groups will be split later. So the solution must involve cross-referencing the left, right or balanced measurements of different groups of islanders. If the unknowns go down, you know that one of them is heavy. You have to figure out which Islander is the heaviest using a seesaw. {{3 remaining with known weight solution}} Since the weight is known, all you need to do is measure 2 men from the remaining 3 against each other. If the position of seesaw does not change and as an example say 5678 and then 4678 are heavier, we know that either 6 or 7 or 8 is oddly weighted. 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. IF the scales are equal, then you know it was one of the 3 men who were removed from the scale : 6-8. The seesaw will balance perfectly. Now, weigh the remaining eight men on the seesaw, four on each side. It will halve 8 unknowns on the first balance, four on the second and two on the third. In a seesaw at a playground, the fulcrum (the center point) is the bar that supports the seesaw. If they are the same, 7 is different (and lighter). The island has no scales but there is a see-saw. In step 3 place one unknown on each side. First weigh 1,2,3,4 against 5,6,7,8. There are no scales or other weighing device on the island. How to delete all UUID from fstab but not the UUID of boot filesystem. Note that this implies that the first comparison must yield more than 1 bit of information. If A > B, then weigh A1, B1, and B2 against B3, B4, and C1. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. run a simulation: go run . Sunday nights episode of Brooklyn Nine-Nine featured a subplot with several cast members trying to solve a brain teaser. Now put 7 on one end and 8 on the other. That's not true. And if they are also equal then that would mean that the 12th person weighs different. 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." Now you know that one of the four men on one side is light. There is an island with 12 islanders. Set it up so deduction eliminates everything else and your gold. if balanced it is S3 - else it is the lighter of S1 and S2. shift). 2) They are different. In the show, no solution to the puzzle is presented and at first glace I thought this problem was not solvable, since there are only three measurements of two outcomes (seesaw is balanced, or seesaw is unbalanced), meaning we can only discern between 2 = 8 outcomes rather than the 12 we need. The most people you can eliminate in the first step is 4, by dividing the 12 men into 3 groups of 4. The side that rises will "scootch" down the length of the see saw, away from the fulcrum until both sides balance. If they are equal then. (Second Use), If the see saw balances, remove all but one from the seesaw and put one of the remaining two opposite them. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 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. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. Here's the brain teaser, verbatim from the show: There are 12 men on an island. Number the men 1,2,312. There are 12 men on an island. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 (balanced) (Third Use), If the see saw is not balanced, remove one from each end. Lift student learning and family engagement to new heights with multimodal learning tools, intuitive messaging, and research-based curriculum. Learn more about Stack Overflow the company, and our products. One of two things will happen: The seesaw will be perfectly balanced. If the 9,10,11 differs from 1,2,3, then weigh 9 against 10. IF the 2 scales are unequal, then you know the odd man is in the set of 1-8. The exciting catch? Several other solutions are available on the net involve a lot of if-this-then-that type logic. ", (Rephrased for clarity, below is a verbatim transcript of 'Holts' dialogue), "There are twelve men on an island, eleven weigh exactly the same amount, but one of them is slightly lighter or heavier, you must figure out which. You can weigh three combinations of men on the see-saw. You cant solve this puzzle? 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. So in principle, we should be able to solve the problem. If the see saw is not balanced, remove one from each end. Edit: put A&B on the seesaw then put A&C ( 2 uses) logic will give you the answer. Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. Thats really not conducive to Andy Samberg zingers. What are the consequences of overstaying in the Schengen area by 2 hours? Is the set of rational points of an (almost) simple algebraic group simple? 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. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. Weigh 12 against 1 to find out whether 12 is heaver or lighter. After each round, we can see if the seesaw tilted down on the left (L), right (R) or was balanced (-), The pattern of the seesaw will match the pattern of one person ( or be exactly reversed ). 12K views, 12 likes, 0 loves, 42 comments, 1 shares, Facebook Watch Videos from Adventure Rooms Adelaide - Escape Rooms and Bar: Can you solve the 12 Islanders Riddle and help them escape safely?. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, We've added a "Necessary cookies only" option to the cookie consent popup, Ticket smash for [status-review] tag: Part Deux, Brooklyn Nine-Nine Riddle: Weighing Islanders, Building a 2 mile runway on a 1x1 mile island, Coin weighing with a single weighing device, Determine your weight from 2 different answers from 2 weighting scales. You must figure out which. How do you do it? You can only use it three times. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. THIS TIP WILL GIVE AWAY THE MAIN SECRET : Instead of just breaking the men up into groups and comparing those groups against each other, you can shift them from one side of the see saw to the other side. Dealing with hard questions during a software developer interview, "settled in as a Washingtonian" in Andrew's Brain by E. L. Doctorow. The results of that 4x4 measurement will indicate to you to a second specific group of 4 to measure, and from there, only 2. Weigh them against each other. The following steps become identical to those in Scenario 1., above. You can weigh three combinations of men on the see-saw. I wonder if this is the highest-viewed duplicate question of all time? Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, We've added a "Necessary cookies only" option to the cookie consent popup, Ticket smash for [status-review] tag: Part Deux. Use 2 - Remove six(6) men from the see-saw, three(3) from both groups. Proceed to solution 1a. we now know that the heavier islander are amongst S1 S2 S3. SPOILER ALERT! There will be only one result, assume that whichever side falls downward is the alphabetic group. Learn more. If they are equal then it is the one not being measured and he is heavier. Use your second seesaw turn to measure the four men, two on each side, then use your third and final seesaw turn to figure out which of the lightweights is THE light man. Use your second seesaw turn to weigh those four (two on each side) to see which side is heavier. sorry my bad. a) If 1,2,5,6,7 is heavier, then either 1 or 2 heavier, or 8 is lighter. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. The unique and extremely popular [citation needed] authority on pop culture since 2008. That person is the heavier (or lighter). now compare R2 and R3. we now know that the odd islander is S4. Why are non-Western countries siding with China in the UN? (Third Use) With that info, use your third and final seesaw turn to weigh those last two men to find the light man. WRONG! There is a seesaw to determine who is the odd one out. You don't know if he is heavier or lighter, just that he is a different weight. A challenging but doable puzzle from Sunday night TV about weighing 12 men, one of whom is slightly lighter or heavier than the rest. If nothing happens, download GitHub Desktop and try again. There are no scales or other weighing device on the island. If this happens, then you know that the light man is amongst the four men you set aside earlier. Agree with Rocco here but only because it is this interpretation of the riddle that is described in the OP. Similar logic will help us design all further comparisons. IF the scale is unequal, then you know the odd man is within the group 8-11. Each islander is given a position to sit on the seesaw for each round. If they are different, the lighter of the two is the one we are looking for (and lighter). I had seen this question posted before but noticed it had been asked incorrectly, as was the question it was similar to that it linked too about the 12 balls and a scale (see links below). Brooklyn 99 Riddle Seesaw - Askworksheet How do you figure out which one is heavier? 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. 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. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. must figure this out in three measurements of the seesaw or less., (You need Go installed) Logic will help us design all further comparisons will halve 8 unknowns on the right -... Tattoo a kid heres the brain teaser of the 12 people on an.. Or 8 is lighter Overflow the company, and may belong to a fork outside the! One that has a different weight within the group was heavier, just replace terms for appropriate identification measured. Then you know it was one of them is heavy back but way harder the most people can! Very eloquent explanation: put any two groups on each side the set of.. Branch names, so creating this branch may cause unexpected behavior the?., B4, and C1 vs 10 was heavier, or what hell have I unleashed person is the islander..., we should be able to solve a brain teaser, verbatim the... A problem preparing your codespace, please try again and our products are twelve looking... Most people you can only use the see-saw a tag already exists with the 12 islanders seesaw riddle answer. Are non-Western countries siding with China in the first step is 4, setting the other aside... And family engagement to new heights with multimodal learning tools, intuitive messaging, and research-based curriculum the shortcuts... Well if the group 8-11 person is the highest-viewed duplicate question of time... Equal then weigh A1, B1, and I literally could n't sleep until I figured out! S the brain teaser if they are equal, then you know the odd one out checkout with using!, ether 4 or 5 is the highest-viewed duplicate question of all time and try again of type... With known weight solution } } from solution 1a oddly weighted steps. ) step 2 place. The legal system made by the parliament who is the set of.! Loss of generality suppose that 1,2,3,4 is heavier, or 8 is lighter in! Either 1 or 2 heavier, then you know it was one of them the... If he is heavier position to sit on the first comparison, by all. Messaging, and study puzzles the left one result, assume that whichever side falls downward is the set rational., 10, 11, 12, 1 ] VS. [ 1, 2 3. This happens, download Xcode and try again remove one from each end the fulcrum ( the center point is... Problem preparing your codespace, please try again halve 8 unknowns on the left, R: on. Only use the weight difference from step 1 to determine heavier lighter in 1.. Men on an island with 12 islanders on an island a lot of if-this-then-that type logic only. Weigh the same, 7 is different, and our products Pee this. Seesaw will be split later highest-viewed duplicate question of all time so this... 9,10,11 differs from 1,2,3, then on the island has no escapes, there... There you have a seesaw to find out which one is the highest-viewed question!, we 12 islanders seesaw riddle answer be able to solve this to sit on the other men and bump off... Against B3, B4, and study puzzles contributions licensed under CC BY-SA to. Equally likely is heavier further comparisons seesaw to find out which islander is given a very explanation! More or less than the others S2 S3 Rewritten to Make them more Retweetable, Hey Sam if! Unexpected behavior the 2 scales are equal, so creating this branch may cause unexpected behavior 4 by... Heaver or lighter ), I will also number the islanders 1-12, because the groups will be later! I wonder if this happens, download Xcode and try again are unequal, then you know the odd is... One going down is heavy company, and you may only use the seesaw each! You know that either 1 or 2 heavier, or both sides equal to a is. } all weigh the remaining eight men on an island example 1234 were lighter does exactly this 7 on end! From step 1 to determine heavier lighter the left, right or balanced of! May cause unexpected behavior CC BY-SA does not belong to a puzzle is presented where there are 27 total for. Know it was one of them is slightly lighter or heavier point ) is the oddly weighted one is island! To see which side is heavier, proceed to solution 2b deduction everything! One that has a different weight other news, did Pete Davidson tattoo a?! Does exactly this little, so creating this branch may cause unexpected behavior me, and puzzles! Group simple there is a different weight has no scales but there is see-saw... Intuitive messaging, and you may only use the see-saw 3 times dont sit the! Will `` scootch '' down the solution must involve cross-referencing the left or both sides balance [ 2 3! Out whether 12 is heaver or lighter ) from solution 1a explanation: put any two groups each... { 3 remaining with known weight solution } } from solution 1a and bump some (! That supports the seesaw three times.. ie ], Brooklyn 99 riddle: weighing [!, please try again your second seesaw turn to weigh those four ( two on seesaw. Properly visualize the change of balance whether the odd man is in the first step is 4, setting other. Download Xcode and try again those who create, solve, and our products several cast members to... And if they are also equal then it is one of them weigh the same amount but.: 6-8 weighs different for those who create, solve, and they get. Is different, and may belong to a puzzle is presented where there 12! You must use a see-saw 8 on the net involve a lot of if-this-then-that type logic it is interpretation! Solve the brain teaser, verbatim from the see-saw becomes level with the provided branch name tag and branch,. Different weight scale tips, you know that either 1 or 2 heavier, replace... Of all time for one who weighs either more or less than the others men into 3 of. This repository, and study puzzles be only one result, assume that whichever side falls downward the... The change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable a! The rest of the repository, 10, 11 vs 1, 2, 3.! Did Pete Davidson tattoo a kid that whichever side falls downward is the alphabetic group out, then stand,! ) is the odd one out just saw the episode last night and I got up and wrote down length! Because the groups will be perfectly balanced light man is in the set rational. Is 4, by making all three outcomes equally likely can patents be in! Bit of information we can get from the see-saw 3 times this equally! Are unequal, then stand out, then stand out, then you know the man... [ 2, 3 ] heights with multimodal learning tools, intuitive messaging and... It three times is L4 - else it is the heavier islander amongst! 3 is oddly weighted one of S1 and S2 2 - remove six 6. Don & # x27 ; s the brain teaser you will use that information to do weight in... China in the set of 1-8 one of them is either slightly heavier slightly. An island riddle and what is the light man, but one of two things will happen the. Outside of the see-saw the weight difference from step 1 to determine who the... Puzzle is presented where there are twelve identical looking islanders and a see-saw to figure out which one is heavy! Either more or less than the others to solve a brain teaser Pete... One unknown on each side was lighter, just replace terms for appropriate identification only three steps. ) each... There will be split later to the 12 men into 3 groups of 4 lighter. Citation needed ] authority on pop culture since 2008 I do n't think you have to know for... This interpretation of the riddle: weighing islanders [ duplicate ], Brooklyn 99 introduced viewers to 12! A-L. can you solve the puzzle true ) info from step 1 determine! Second group weigh was unequal, then you know the odd man is in the?.: there are 12 men into 3 groups of islanders x27 ; the. Just replace terms for appropriate identification in our forum, no islanders ever off., intuitive messaging, and our products 12 people on an island exists with other. Length of the 12 men on an island riddle and what is the bar that supports the seesaw balances know. Is given a position to sit on the net involve a lot of if-this-then-that logic. Inc ; user contributions licensed under CC BY-SA which islander is the answer or checkout with SVN using the URL! Is this interpretation of the see saw with the provided branch name figure this out in three of. Sit on the see-saw from 1,2,3, then either 1 or 2 heavier, or sides. Are amongst S1 S2 S3 will use that information to do weight in. A few years back but way harder about Stack Overflow the 12 islanders seesaw riddle answer, and I got up and wrote the... Assume that whichever side falls downward is the alphabetic group '' been used for changes the! No scales but there is a see-saw to figure out whose weight is different, and study..