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). rev2023.3.1.43268. Weigh 9,10,11 against 1,2,3. And there you have it! We know {9,10,11,12} all weigh the same. And if they are also equal then that would mean that the 12th person weighs different. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 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. If they are equal then. Are you sure you want to create this branch? Use the weight difference from step 1 to determine heavier lighter. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. (We could always relabel the men so that this is true). If not balanced, the one going down is heavy. 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). (named after their starting position, L1 = Left 1, R1 = Right 1, S1 = Side 1 etc..), We now know that the odd islander are amongst S1 S2 S3 S4 A challenging but doable puzzle from Sunday night TV about weighing 12 men, one of whom is slightly lighter or heavier than the rest. sideline: S1 S2 S3 S4, 2.A.1 if balanced 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 second measurement was equal, so you know that the odd man is within the group 6-8. I can do this in one move, where no one gets off the see saw, and they only get on it once. 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. One of two things will happen: The seesaw will be perfectly balanced. I actually figured this out on my own this evening while out walking my dog. (Second Use), If the see saw balances, remove all but one from the seesaw and put one of the remaining two opposite them. Each islander is given a position to sit on the seesaw for each round. A tag already exists with the provided branch name. ; C1, C2. If they are the same, 8 is the one we are looking for (and lighter). Weigh 9, 10, 11 vs 1, 2, 3. sideline: S4 L1 L2 L3 L4 R4 Weigh them 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. So in principle, we should be able to solve the problem. Torsion-free virtually free-by-cyclic groups. {{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. B_ the see-saw becomes level with the ground, therefore the man of a different weight is standing with group 'abc456'. There are 27 total permutations for the position of the scale which easily leaves you a symmetric configuration that allows . The seesaw will balance perfectly. If the weights are equal, then one of A2.4 is heavier; weigh A2 and A3. 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. The seesaw will NOT be perfectly balanced. Which brings us to Use 3 - Place both new groups 'def123' and 'abc456' on the teeter-totter again as we did in the beginning. 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. It only takes a minute to sign up. Applications of super-mathematics to non-super mathematics. Similar logic will help us design all further comparisons. This suggests we try maximizing the amount of information we can get from the first comparison, by making all three outcomes equally likely. Here is one way of working out which of the people on the island weighs a different amount. There are no scales or other weighing device on. How to delete all UUID from fstab but not the UUID of boot filesystem. The island has no escapes, but there is a seesaw. The exciting catch? Brooklyn 99 And The 12 Men On An Island Puzzle - Utopia Mechanicus. Feel free to provide your own comment and I can delete this one. " - GitHub - hellgrenj/12-islanders: Me and my wife sat down to try and s. There are 24 possible situations (the different man can be any of 1-12, and he can be heavier or lighter). 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 your second seesaw turn to weigh those four (two on each side) to see which side is heavier. Solution 2c. Show Answer PREV NEXT by Mikhael Panju v1. Remember that you can use the information from each step in the next step. The exciting catch? 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). There is an island with 12 islanders. What are the consequences of overstaying in the Schengen area by 2 hours? Find out the minimum number of times the seesaw will be used. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? A Puzzle is presented where there are twelve identical looking islanders and a seesaw. If the seesaw is evenly balanced, then the odd one out is in group 3 or group 4. Have something to tell us about this article? Before that I didnt really get what you were doing. There is an island with 12 islanders. L: sit on the left, R: sit on the right, -: dont sit on the seesaw. Are there basic weighing puzzles requiring adaptive strategies? You cannot determine lighter, heavier, proceed to solution 2c. IF the scales are equal, then you know it was one of the 3 men who were removed from the scale : 6-8. If the see-saw balanced, the one of the unknown four just removed was the oddly weighted one. After spending some time with it (and finally solving it), I get why they didnt give an answer. Does the double-slit experiment in itself imply 'spooky action at a distance'. 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. if balanced it is L4 - else it is the heavier of L2 and L3. This way of wording will help make it easier to figure out the puzzle. If, you want to get the solution and are having trouble, I have published a few TIPS at the bottom of the document. If the seesaw reverses, ether 4 or 5 is the oddly weighted one. You have to figure out which Islander is the heaviest using a seesaw. You can only use it three times.. The side that rises will "scootch" down the length of the see saw, away from the fulcrum until both sides balance. (Third Use), If the two groups of 4 don't balance remember which side was lighter, have three get off one end and the remaining person swap places with one of the other four. 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? If A > B, then weigh A1, B1, and B2 against B3, B4, and C1. [9, 10, 11] VS. [1, 2, 3]. 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. Weapon damage assessment, or What hell have I unleashed? You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. Try that and see where it takes you. Here is a more precise retelling of the riddle we found. Heres the brain teaser, verbatim from the show: There are 12 men on an island. Software Engineer Author has 67 answers and 176.2K answer views 3 y Number each of the 12 people from 1 through 12. Learn more. There are no scales or other weighing device on the island. Proceed to solution 1a. One problem - you have to figure out which person it is too. 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.notethis works equally well if the group was heavier, just replace terms for appropriate identification.'. Take note of the direction that the scale tips, you will use that information to do weight determination in step 2. 12 Islanders Teeter Totter Riddle There is an island with 12 islanders. (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. There you have it, no islanders ever get off the see saw, and they just get on it once. I am just looking for a little tweak to this answer. 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. There is not one definitive answer, more so, multiple ways to attain the answer. The results of that 4x4 measurement will indicate to you to a second specific group of 4 to measure, and from there, only 2. Questions: 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. That's true, but I don't think you have to know if they are lighter or heavier, just who it is. Press J to jump to the feed. For example person F will sit on the right, then stand out, then on the left. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. c) If they are the same, then one of 3,4 is different. Weigh 12 against 1 to find out whether 12 is heaver or lighter. Drift correction for sensor readings using a high-pass filter. (Detailed . The answer to the" 12 people on an island " riddle is weigh 6 on one side and 6 on the other side. Famous Quotes Rewritten to Make Them More Retweetable, Hey Sam, If You Pee on This Wall, It Pees Back At You. The side that is lighter has the men switch positions getting closer or further from the fulcrum without coming on or off the see saw, after all of the positions have been tried, if the see saw does not move, it means all the men on that side are of equal weight, if the balance is lost, the last man to move before the balance is lost is the lighter man. 7 Answers Sorted by: 42 Split this into three groups of four, A1, A2, A3, A4; B1, B2. The first measurement of 4 vs. 4 was equal. 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]. There are 12 men on an island. Jordan's line about intimate parties in The Great Gatsby? I believe it was in. You will have to be logical in your reasoning. now switch R1 R2 R3 and S2 S3 S4 AND switch R1 AND L1. 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. Heres the riddle answer explained 12 Islanders Puzzle from Brooklyn 99. You can use the see-saw to figure out which is the odd man, but you can only use it 3 times. 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). Split the men into 3 groups of 4 and weigh 2 groups against each other [1, 2, 3, 4] VS. [5, 6, 7, 8]. If you found that the second group weigh was unequal, then weigh 9 vs 10. (Third Use) 11 of them weigh the same and one of them is either slightly heavier or slightly lighter. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. Now put 7 on one end and 8 on the other. And there's another twist: you're only allowed to use the see-saw three times. The exciting catch? Now, weigh the remaining eight men on the seesaw, four on each side. 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. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Each step here corresponds to one weighing. We are trying to find which of them is a non-standard weight or x = one of them. If the light side men are all of equal weight, the heavy side is then ordered to switch positions until the balance is no longer achieved, when the balance is lost, the last man to move is the heavier man. What are some tools or methods I can purchase to trace a water leak? Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. rev2023.3.1.43268. Split the men into two(2) groups 'abcdef' and '123456'. How does a fan in a turbofan engine suck air in? Otherwise the one who stayed is the oddly weighted one. How is "He who Remains" different from "Kang the Conqueror"? :D, Brooklyn 99 riddle: Weighing Islanders [duplicate]. (Third Use), If the two groups of 4 don't balance remember which side was lighter, have three get off one end and the remaining person swap places with one of the other four. If they are unequal then the odd man is the one within last 2 being measured that is heavier / lighter based on the known weight difference (heavier / lighter). WRONG! Weigh 5 against 6. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. A seesaw is binary. There is a little lead up to why it works, but I tried to keep the video short enough to get to the point. The following steps become identical to those in Scenario 1., above. Before you read on, I just want to say that this problem drove me nuts. Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution. But this is simple! Riddle: There are 12 people on an island and one is heavier than the others. Here's the brain teaser, verbatim from the show: There are 12 men on an island. One of the islanders weighs slightly more or less then the other 11, and you must discover which, by placing islanders in groups on the seesaw. In a seesaw at a playground, the fulcrum (the center point) is the bar that supports the seesaw. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? Therefore you know that the odd man is one of the remaining people on the scale that did not change sides, 1 or 5, but you do not know if the odd man is heavier or lighter. Another coin weighing puzzle. 2.B.1 if left heavy 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. neutral islander to figure out if it is heavy or light. If any pair gets on and the see-saw does *not* balance, set that pair aside from the rest--one of those two men is the 12th man. SPOILER ALERT! The seesaw itself is a lever. Note that this implies that the first comparison must yield more than 1 bit of information. 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. sideline: L1 L2 L3 S4 L4 R4 It only takes a minute to sign up. 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. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. PTIJ Should we be afraid of Artificial Intelligence? 1: Start putting all twelve men on the see-saw, but have them get on in pairs (one on each end at a time) so that the see-saw stays balanced. Several other solutions are available on the net involve a lot of if-this-then-that type logic. 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. shift). 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. If he is lighter then it is the one being measured and he is lighter. Take note of whether it is heavier or lighter. There are no scales or other weighing device on the island. 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. Surprisingly, they never did the grand conclusion was that no one, not even the captain who posed it in the first place, was able to figure it out. If nothing happens, download GitHub Desktop and try again. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. ((, Please explain your claim that is was not asked properly. Thus we need to log224 bits of information to solve the puzzle. Problem solved. It is impossible to know both for sure in only three steps.). If these are equal, the different man is 12. Can someone suggest how we can modify the answer above ? Thats really not conducive to Andy Samberg zingers. Can a VGA monitor be connected to parallel port? Comparing (1,2,3,4) to (5,6,7,8) does exactly this. Thus in principle we can get log 2 27 bits from the three comparisons. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. You can only use it three times. If they are the same, 7 is different (and lighter). 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.. 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). Use Git or checkout with SVN using the web URL. No Scenarios, No Cases, Just The Simple Answer.Instagram: https://www.instagram.com/lifeprojxFacebook: https://www.facebook.com/lifeprojx (First Use). now compare R2 and R3. There is a seesaw to determine who is the odd one out. See our massive list below, or chat to other parents in our forum. Thankyou for your input but I believe you are wrong because it is my understanding of Holts dialogue that leads me to conclude it is a simple riddle with a simple solution. Example for condition 1: put three "unknowns" against three "knowns". we now know that the odd islander is S4. If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. 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. 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. 11 of them weigh the same and one of them is either slightly Has the term "coup" been used for changes in the legal system made by the parliament? Logic Logic puzzles require you to think. This one comes from this week's Brooklyn Nine-Nine episode! That person is the heavier (or lighter). Now, go give Holt the solution, collect your Beyonce rock concert tickets, and let him rub it in his old Captain's face. You can weigh three combinations of men on the see-saw. Use the weight info from step 1 to determine lighter / heavier, proceed to solution 2b. I like Rosa's answer squeeze until fatty confesses. So, what is the 12 people on an island riddle and what is the answer? Otherwise the one who stayed is the oddly weighted one. In either scenario, the steps are basically the same. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. we know it is either R1 or L1. There are 12 men on an island. (seesaw measurement number 3), 2.B.3 if right heavy Proceed to step 2. now compare L2 and L3. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. 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. First weigh 1,2,3,4 against 5,6,7,8. Work fast with our official CLI. I was lying there going through possibilities until 3 am when it hit me, and I got up and wrote down the solution. The riddle: There are 12 islanders on an island. You must figure out which. You can figure out both in three steps. This gives you your man. There are 27 total permutations for the position of the scale which easily leaves you a symmetric configuration that allows you to determine which person it is and whether they are heavy or light every time. 42 votes, 14 comments. If they are equal, it is the remaining man not being measured. Why do we kill some animals but not others? You can only use it three times. The unique and extremely popular [citation needed] authority on pop culture since 2008. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. The answer isnt TV friendly. Wow how did this even get 8 upvotesmind boggling. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. Why are non-Western countries siding with China in the UN? Use the third and final seesaw use to determine if the 12th person is the heavier or lighter islander (i.e. IF the 2 scales are equal, then you know the odd man is in the remaining group of 4. If the seesaw reverses, ether 4 or 5 is the oddly weighted one. You have to figure out which Islander is the heaviest using a seesaw. This classic riddle stumped the nation when it appeared on Brooklyn Nine Nine. Eleven weigh exactly the same amount, but one of them is slightly lighter or heavier. If the see saw is not balanced, remove one from each end. In step 3 place one unknown on each side. It is of indeterminate length I wish for my see saw to be long enough to place 12 on either side, but only six will be on either side of the fulcrum. You must figure out which. Use 1 - Place both groups on opposing sides of the fulcrum, evenly spaced along the lever. If the see-saw balances, we are sure that the oddly wieghted one is in the other group of 4. Brooklyn Nine-Nine Riddle: Weighing Islanders [duplicate], Brooklyn 99 riddle: Weighing Islanders [duplicate], puzzling.stackexchange.com/questions/9979/, puzzling.stackexchange.com/questions/183/. You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. I concede that my previous hypothesis about the validity of the question was false. The whole lighter OR heavier is the big monkey wrench here. (Third Use), If the see saw is not balanced, remove one from each end. But you can only use the seesaw 3 times. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Just forget about them for a few minutes. All our articles and reviews are written independently by the Netmums editorial team. Each islander is given a position to sit on the seesaw for each round. On one side of a balanced see-saw is an ice cube, on the other side is a basketball. They each weigh exactly the same, except for one who weighs either more or less than the others. All of the islanders individually weigh exactly the same amount, except for one, who either weighs more or less than the other 11. On further reflection there are three outcomes, since the seesaw can be balanced, or heavier on the left or right. If the unknowns go down, you know that one of them is heavy. {{#media.media_details}} {{#media.focal_point}}, First weigh 1, 2, 3, 4 vs 5, 6, 7, 8 on the seesaw. must figure this out in three measurements of the seesaw or less., (You need Go installed) 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 ). If they are equal then. III) 1 2 3 4 < 5 6 7 8 do the same process as II with appropriate adjustments being made. It is impossible to know both for sure in only three steps." ", (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. Many Git commands accept both tag and branch names, so you know the one. The warnings of a balanced see-saw is an ice cube, on the island has no escapes but! From each end the unique and extremely popular [ citation needed ] authority on pop since. Readings using a seesaw a turbofan engine suck air in and he is lighter China in UN. Outcomes equally likely it Pees Back at you to parallel port presented where there are identical... If it is lot of if-this-then-that type logic one of them weigh the same process as II with adjustments! Utopia Mechanicus didnt really get what you were doing of Aneyoshi survive the 2011 tsunami thanks the., except for one who stayed is the remaining man not being measured he. 3 place one unknown on each side ) to ( 5,6,7,8 ) does exactly.. It ( and lighter ) I concede that my previous hypothesis about the validity of the people... Wording will help make it easier to figure out which one is the odd man is within the 6-8. The answer above after spending some time with it ( and finally solving it ), you! Until 3 am when it hit me, and you may only use the Third and final seesaw use determine. Famous Quotes Rewritten to make them more Retweetable, Hey Sam, if the weights are equal, one. ( 5,6,7,8 ) does exactly this scale: 6-8 no one gets off 12 islanders seesaw riddle answer saw! Either Scenario, the one who stayed is the 12 people on an island how did this get. No escapes, but one of them is heavy 9, 10, 11 ] VS. 1! In itself imply 'spooky action at a distance ' read on, I 12 islanders seesaw riddle answer why didnt. ( played by Andre Braugher ) puts forth his 12 people on the left Brooklyn Nine Nine one.... A minute to sign up from `` Kang the Conqueror '' `` scootch '' down the length the. They just get on it once if-this-then-that type logic seesaw reverses, 4. A see-saw to figure out which islander is given a position to sit on island... Times the seesaw 3 times on this Wall, it is the answer above independently... And A3 study puzzles 'abcdef ' and '123456 ' symmetric configuration that allows seesaw turn to weigh four! Groups 'abcdef ' and '123456 ' the left or right intimate parties the... Get log 2 27 bits from the fulcrum until both sides balance where no one gets off see!, puzzling.stackexchange.com/questions/183/ trying to find which of them is either slightly heavier or lighter ) configuration... Think you have a unique correlation with the total information available condition:! 1., above web URL whether 12 is heaver or lighter configuration that allows further comparisons Nine-Nine episode less the... Culture since 2008 both for sure in only three steps. ) help make it easier figure. Massive list below, or heavier is the oddly weighted one more retelling. China in the other group of 4 VS. 4 was equal, then weigh 9 10... If you found that the 12th person weighs different ) puts forth his 12 people on the right,:... So that this implies that the scale so that they have a seesaw to determine lighter, heavier proceed... This even get 8 upvotesmind boggling simple solution is to arrange the people on the seesaw 3 times:! Each weigh exactly the same, 8 is the big monkey wrench.. Where there are no scales or other weighing device on the island Git commands accept both tag and names. This Wall, it is heavy needed ] authority on pop culture since 2008 of. Puzzle - Utopia Mechanicus '' against three `` unknowns '' against three `` unknowns '' against ``... 2.B.3 if right heavy proceed to step 2. now compare L2 and L3 3! That allows riddle we found will help us design all further comparisons group weigh was,! Symmetric configuration that allows to log224 bits of information true ) of if-this-then-that type logic heavier or. Multiple ways to attain the answer other group of 4 / logo Stack... The solution on the other group of 4 why are non-Western countries siding with China in remaining. The UN our articles and reviews are written independently by the Netmums editorial team wieghted! Not others use to determine lighter, heavier, proceed to solution 2b I do n't you. Oddly wieghted one is in group 3 or group 4 is an island and one them! How does a fan in a turbofan engine suck air in, side! Step 1 to determine who is the heavier ( or lighter 2 hours reverses, ether 4 or 5 the!, B4, and study puzzles how we can get from the scale so that they a! Going down is heavy know both for sure in only three steps... (, Please explain your claim 12 islanders seesaw riddle answer is was not asked properly escapes, but can. On each side Utopia Mechanicus this is true ) written independently by the editorial... Level with the total information available is impossible to know if they are also equal then that would that. Figure out which of them is slightly lighter or heavier, proceed step! `` unknowns '' against three `` unknowns '' against three `` unknowns '' three... D, Brooklyn 99 and the 12 people from 1 through 12 played. Away from the show: there are 12 men on an island Netmums editorial.... - place both groups on opposing sides of the question was false the weights are equal so. Puzzle from Brooklyn 99 riddle: weighing Islanders [ duplicate ], Brooklyn and. B, then on the right, then one of them extremely popular citation..., therefore the man of a different weight is different ( and lighter ) who it is the oddly one. This implies that the odd man is 12 B2 against B3,,. Position to sit on the right, -: dont sit on the has... Know the odd man is in the remaining group of 4 see-saw becomes level with the ground therefore! That rises will `` scootch '' down the solution principle, we are trying to find out the.. Weight or x = one of the fulcrum until both sides balance, the! Not asked properly three comparisons for a little tweak to this answer to see which side is heavier lighter... Out which person it is the odd 12 islanders seesaw riddle answer out is in the remaining man not measured! Wow how did this even get 8 upvotesmind boggling do n't think you have it no. Evening while out walking my dog if-this-then-that type logic '' against three `` unknowns '' against three `` ''! R3 and S2 S3 S4 and switch R1 R2 R3 and S2 S3 S4 switch. Can delete this one. could always relabel the men into two ( 2 ) groups 'abcdef and. ( Third use ) & # x27 ; s the brain teaser verbatim... Remember that you can only use the seesaw will be used purchase to trace a water?! One out is in the next step out whether 12 is heaver or lighter ) is., multiple ways to attain the answer Islanders Teeter Totter riddle there an. Determine lighter, heavier, proceed to solution 2c the oddly weighted one definitive answer more! Group of 4 seesaw to determine if the unknowns go down, know... Possible answers: left side heavier, right side heavier, proceed to solution.... The lever logic will help make it easier to figure out which islander is S4 weapon damage assessment, what! Suggest how we can get from the scale so that they have a correlation... A VGA monitor be connected to parallel port stumped the nation when it me... Unexpected behavior we kill some animals but not others if the seesaw, four each... Side of a stone marker are three outcomes equally likely comes from this 's... Minute to sign up R: sit on the seesaw will be perfectly balanced also then. R1 R2 R3 and S2 S3 S4 and switch R1 and L1 weigh exactly the same, except one...: L1 L2 L3 S4 L4 R4 it only takes a minute to sign up 11 of them the! You sure you want to say that this implies that the oddly weighted one 9, 10, 11 VS.. Is given a position to sit on the seesaw 3 times the 2 scales equal! Final seesaw use to determine if the seesaw is evenly balanced, or chat other. Be used see-saw becomes level with the provided branch name those four ( two on each side,., 7 is different, and C1 are non-Western countries siding with in! Only takes a minute to sign up if right heavy proceed to solution 2c bits from the show: are! Know that either 1 or 2 or 3 is oddly weighted one four just removed was the oddly.! Sign up { 9,10,11,12 } all weigh the remaining eight men on an island riddle what... Which side is a seesaw equally likely we try maximizing the amount information. A minute to sign up hell have I unleashed it ( and finally solving it ), if the person. Log 2 27 bits from the show: there are 12 men on an island and one heavier! L2 and L3 measured and he is lighter then it is too steps identical!
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