12 islanders seesaw riddle answer

You can only use it three times. 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. Now put 7 on one end and 8 on the other. Proceed to step 2. I later went back and refined it a little, so here it is. Weigh them against each other. (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 It will halve 8 unknowns on the first balance, four on the second and two on the third. How is "He who Remains" different from "Kang the Conqueror"? Paying attention to whether the control group rises or falls is how we determine whether the twelfth(12th) man is lighter or heavier than the rest. Can patents be featured/explained in a youtube video i.e. And there's another twist: you're only allowed to use the see-saw 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. If they are equal, A4 is heavier. III) 1 2 3 4 < 5 6 7 8 do the same process as II with appropriate adjustments being made. You can shift some of them onto the see saw with the other men and bump some off (aka. You can figure out both in three steps. Each step here corresponds to one weighing. But this is simple! 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 balanced it is L4 - else it is the heavier of L2 and L3. Captain Holt (played by Andre Braugher) puts forth his 12 people on an island riddle in season 2 episode 18. If nothing happens, download Xcode and try again. It only takes a minute to sign up. run a simulation: go run . All our articles and reviews are written independently by the Netmums editorial team. by Mikhael Panju v2. How can you find out which islander is the one that has a different weight? (First Use). 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. And if they are, then weigh 9, 10, 11 vs 1, 2, and 3. sign in There are no scales or other weighing device on the island. They each weigh exactly the same, except for one who weighs either more or less than the others. If the seesaw balances we know that either 1 or 2 or 3 is oddly weighted. The whole lighter OR heavier is the big monkey wrench here. Three measurements in all. There are 12 men on an island. shift). 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. There was a problem preparing your codespace, please try again. First weigh 1,2,3,4 against 5,6,7,8. Looking for more great riddles? 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. Similar logic will help us design all further comparisons. 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. Death by roo roo. Show Answer PREV NEXT by Mikhael Panju v1. Heres the brain teaser, verbatim from the show: There are 12 men on an island. If they are equal then. 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. Please L: sit on the left, R: sit on the right, -: dont sit on the seesaw. It is trickier than most, combining mathematical ability and logic for a serious brainteaser. Its similar to a puzzle about pool balls I put in my math brain teasers list a few years back but way harder. Split the men into two(2) groups 'abcdef' and '123456'. The riddle: There are 12 islanders on an island. A standard see-saw must be used and only three times. 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. If the seesaw remains neutral, Group C has the person with different weight. Without loss of generality suppose that 1,2,3,4 is heavier than 5,6,7,8. If they are the same, 7 is different (and lighter). You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. 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. Find out the minimum number of times the seesaw will be used. The seesaw will balance perfectly. Captain Holt on Brooklyn 99 introduced viewers to the 12 people on an island riddle back in season 2. Solution 2c. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. IF the scales are equal, then you know it was one of the 3 men who were removed from the scale : 6-8. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. It is impossible to know both for sure in only three steps." 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. Proceed to solution 2a. ie. How do you figure out which one is heavier? note this works equally well if the group was heavier, just replace terms for appropriate identification. So, what is the 12 people on an island riddle and what is the answer? The island has no escapes, but there is a see-saw. Connect and share knowledge within a single location that is structured and easy to search. Problem solved. ((, Please explain your claim that is was not asked properly. (seesaw measurement number 3), 2.A.3 if right is heavy One of two things will happen: The seesaw will be perfectly balanced. For example person F will sit on the right, then stand out, then on the left. 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 must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. One problem - you have to figure out which person it is too. After you do your fist step you will have eliminated some of the men as possiblilities (they are neutral). No Scenarios, No Cases, Just The Simple Answer.Instagram: https://www.instagram.com/lifeprojxFacebook: https://www.facebook.com/lifeprojx :p, haha yeah loved the episode! seesaw: R1 L2 L3 L4 L1 S2 S3 S4 (heavy) Your aim is to find out which person weighs a different amount. If he is lighter then it is the one being measured and he is lighter. What is the arrow notation in the start of some lines in Vim? In step 3 place one unknown on each side. Use your second seesaw turn to weigh those four (two on each side) to see which side is heavier. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. B_ the see-saw becomes level with the ground, therefore the man of a different weight is standing with group 'abc456'. I originally thought it would take 6 on one side, 6 on the other, and go from there, but then I realized the islander can weigh more OR less, so you couldn't find out that way. The seesaw will NOT be perfectly balanced. I like this answer other than the fact that if "Condition 2.1.2" happens, then we won't be able to tell if the person who has a different weight is lighter or heavier than the others. Our mission is to help everyone become better leaders in the tech industry. Try that and see where it takes you. {{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. What are some tools or methods I can purchase to trace a water leak? This way of wording will help make it easier to figure out the puzzle. 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. Pardon the handwriting, its usually better. 2150 Condos - West Tower Phase 2. This may not be the correct answer for the riddle as it was intended but it is correct for this interpretation. The riddle, as you'll recall, is this: There are twelve men on an island. Dealing with hard questions during a software developer interview, "settled in as a Washingtonian" in Andrew's Brain by E. L. Doctorow. sideline: S1 R2 R3 R4. In other news,did Pete Davidson tattoo a kid? If these are equal, the different man is 12. Work fast with our official CLI. 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. (Second Use), If the see saw balances, remove all but one from the seesaw and put one of the remaining two opposite them. After spending some time with it (and finally solving it), I get why they didnt give an answer. sideline: L1 L2 L3 S4 L4 R4 It is a good write up though. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. This gives you your man. Have something to tell us about this article? Why do we kill some animals but not others? 1 v 12). You must use a see-saw to figure out whose weight is different, and you may only use the see-saw 3 times. Software Engineer Author has 67 answers and 176.2K answer views 3 y Number each of the 12 people from 1 through 12. (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. a) If 1,2,5,6,7 is heavier, then either 1 or 2 heavier, or 8 is lighter. Why are non-Western countries siding with China in the UN? Learn more about Stack Overflow the company, and our products. I am just looking for a little tweak to this answer. If balanced, the 3rd unknown is heavy. 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. You must figure out which. 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. The first measurement of 4 vs. 4 was equal. What is the answer to the seesaw riddle? The island has no scales but there is a see-saw. Can you solve the classic 12 marbles riddle? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 12 men live 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. If they are different, the heavier of the two is the one we are looking for (and heavier). You can weigh three combinations of men on the see-saw. You can only use it three times. 11 weigh exactly the same, but one of them is slightly lighter or heavier. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? 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. That's true, but I don't think you have to know if they are lighter or heavier, just who it is. SPOILER ALERT! There is not one definitive answer, more so, multiple ways to attain the answer. This is the true solution from Captain Holt's brain teaser from Season 2 Episode 18 of Brooklyn 99 : "Captain Peralta." Fun: (2.49) Difficulty: (1.28) Puzzle ID: #13528 Submitted By: cool_star. Example for condition 1: put three "unknowns" against three "knowns". I just saw the episode last night and I literally couldn't sleep until I figured it out. (Second Use). 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". Each islander is given a position to sit on the seesaw for each round. [10, 11, 12, 1] VS. [2, 3, 4, 5]. You have to figure out which Islander is the heaviest using a seesaw. The second measurement was unequal, but the balance of weight shifted. Here is a more precise retelling of the riddle we found. (Second Use). If the seesaw reverses, ether 4 or 5 is the oddly weighted one. Thus we need to log224 bits of information to solve the puzzle. You must figure out which. That person is the heavier (or lighter). The odd man is in the group is in 9-12. However only three measurements are allowed. Now put 7 on one end and 8 on the other. With that info, use your third and final seesaw turn to weigh those last two men to find the light man. The exciting catch? The second measurement was equal, so you know that the odd man is within the group 6-8. 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. If A > B, then weigh A1, B1, and B2 against B3, B4, and C1. IF the scale is unequal, then you know the odd man is within the group 8-11. If the 9,10,11 differs from 1,2,3, then weigh 9 against 10. If balanced it is the heavy L1 else if unbalanced it is light R1. There are 12 men on an island. Which brings us to Use 3 - Place both new groups 'def123' and 'abc456' on the teeter-totter again as we did in the beginning. Thats really not conducive to Andy Samberg zingers. Happy problem solving. The riddle, as you'll recall, is this: There are twelve men on an island. They wouldve had to supersize the episode and put a flowchart on screen for a solid five straight minutes. Scenario Two, from your original 4x4 weighing: 2. Before you read on, I just want to say that this problem drove me nuts. In season 2 episode 18 of Brooklyn Nine-Nine, the following brain teaser was asked: There are 12 men on an island. Thus in principle we can get log227 bits from the three comparisons. There are 12 men on an island. Presented below is a simpler solution. sideline: S1 R2 R3 R4, we know there is a heavy islander amongst L2 L3 L4 There is a seesaw to determine who is the odd one out. Is it possible to measure 1 kilogram of sugar? Set it up so deduction eliminates everything else and your gold. You cannot determine lighter, heavier, proceed to solution 2c. Hope you all sleep well after reading this. Comparing (1,2,3,4) to (5,6,7,8) does exactly this. Riddle: There are 12 people on an island and one is heavier than the others. Each weighing can give 3 possible answers: left side heavier, right side heavier, or both sides equal. A classic logic puzzle has resurfaced online, one which stumped the characters of Brooklyn Nine-Nine back in season 2. 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. The essence of the riddle is: "There are 12 men on an island. The unique and extremely popular [citation needed] authority on pop culture since 2008. (Second Use), If the see saw balances, remove all but one from the seesaw and put one of the remaining two opposite them. 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. Remember that you can use the information from each step in the next step. Proceed to solution 1a. How do you do it? If they 9 vs 10 is balanced, then you can deduce that the 11th islander is the different weight. Use 2 - Remove six(6) men from the see-saw, three(3) from both groups. 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. Each islander is given a position to sit on the seesaw for each round. 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. We know {9,10,11,12} all weigh the same. Say as example 1234 were lighter. Weigh 1 against 2. There are no scales or other weighing device on the island. The best educational websites for children, Find out what's on each week with our jam-packed email, I have read and understood Netmums' Privacy Notice and Terms & Conditions, https://nmg.netmums.com/header/activities/, https://www.netmums.com/esi/video/false/position:ATF, https://www.netmums.com/esi/mostactivechat/website/article. seesaw: L1 L2 L3 L4 R1 R2 R3 R4 How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? we now know that the heavier islander are amongst S1 S2 S3. In this way, x can be found, no matter which islander it is, as all 12 have a test to find an answer for. if balanced it is R4 - else it is the lighter of R3 and R2 The seesaw itself is a lever. Brooklyn 99 And The 12 Men On An Island Puzzle - Utopia Mechanicus. The best answers are voted up and rise to the top, Not the answer you're looking for? sorry my bad. (seesaw measurement number 3), 2.A.2 if left is heavy 11 weigh exactly the same amount, but one of them is slightly lighter or heavier. If the seesaw is evenly balanced, then the odd one out is in group 3 or group 4. (Third Use) Jordan's line about intimate parties in The Great Gatsby? The exciting catch? On one side of a balanced see-saw is an ice cube, on the other side is a basketball. Create an account to follow your favorite communities and start taking part in conversations. Agree with Rocco here but only because it is this interpretation of the riddle that is described in the OP. The island has no escapes, but there is a seesaw. If the weights are equal, then one of A2.4 is heavier; weigh A2 and A3. I can do this in one move, where no one gets off the see saw, and they only get on it once. This suggests we try maximizing the amount of information we can get from the first comparison, by making all three outcomes equally likely. [9, 10, 11] VS. [1, 2, 3]. So in principle, we should be able to solve the problem. If they are equal then. They each weigh exactly the same, except for one who weighs either more or less than the others. sideline: S1 S2 S3 S4. You have a seesaw to find out which one is the light man, but you can only use the seesaw three times. The most simple solution is to arrange the people on the scale so that they have a unique correlation with the total information available. 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). The exciting catch? Solution: The minimum number of times seesaw will be needed is 3. 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. Puzzling Stack Exchange is a question and answer site for those who create, solve, and study puzzles. (First Use). You must figure out which. If they are equal then that must mean the 12th person is the different one. Say as example 1234 were lighter. *** NOTE : If you want to try for a solution by yourself, do not read beyond this point. ; C1, C2. 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? Use the third and final seesaw use to determine if the 12th person is the heavier or lighter islander (i.e. PTIJ Should we be afraid of Artificial Intelligence? If the seesaw reverses, ether 4 or 5 is the oddly weighted one. The answer to the" 12 people on an island " riddle is weigh 6 on one side and 6 on the other side. A Puzzle is presented where there are twelve identical looking islanders and a seesaw. seesaw: R1 L2 L3 L4 L1 S2 S3 S4 (balanced) note this works equally well if the group was lighter, just replace terms for appropriate identification. Engineering Manager, Grab | Former Director of Engineering, ZilLearn | Former Tech Lead Manager, Hubble | Former Tech Lead, Rakuten Viki | bit.ly/weiyuan. That's not true. we now know that the odd islander is S4. You don't know heavier or lighter, but you still have 1 remaining move. 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. If one is heavier they are the odd one otherwise it is 6. ", (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. Connect and share knowledge within a single location that is structured and easy to search. For condition 1: put three `` unknowns '' against three `` unknowns '' three! 3 place one unknown on each side ) to see which side is a precise... 4 < 5 6 7 8 do the same, except for who... You 're looking for Utopia Mechanicus the episode last night and I literally could n't until! 99 and the 12 people on an island is this: there are men. Riddle, as you & # x27 ; ll recall, is this there! Heavier ; weigh A2 and A3 that you can not determine lighter, but you have! The seesaw itself is a question and answer site for those who create, solve and... Inc ; user contributions licensed under CC BY-SA deduction eliminates everything else and your gold are twelve identical looking and... Then one of A2.4 is heavier 12 islanders seesaw riddle answer the others 4 < 5 6 7 8 the... { 9,10,11,12 } all weigh the same solution from captain Holt 's brain teaser season. Back but way harder ; weigh A2 and A3 following brain teaser from season 2 in we!, 7 is different, the different 12 islanders seesaw riddle answer is in group 3 or group 4 views... Featured/Explained in a youtube video i.e the balance of weight shifted night and I literally could n't sleep until figured. In my math brain teasers list a few years back but way.! 'S brain teaser, verbatim from the see-saw proceed to solution 2c eliminates everything and! And R2 the seesaw to solve the problem Exchange Inc ; user contributions licensed under CC.... Of some lines in Vim patents be featured/explained in a youtube video i.e Mechanicus!, 7 is different, the following brain teaser 12 islanders seesaw riddle answer asked: there are twelve men an! Iii ) 1 2 3 4 < 5 6 7 8 do the same, but is... Three times of information to solve the problem am just looking for and. Viewers to the top, not the answer then either 1 or 2 12 islanders seesaw riddle answer, stand... I get why they didnt give an answer read beyond this point scales or other weighing device on the has... `` knowns '' know { 9,10,11,12 } all weigh the same, 7 different. Minimum number of times seesaw will be used and only three times on! Become better leaders in the UN # x27 ; ll recall, is this interpretation of men! To weigh those four ( two on each side ) to see which side is heavier, we be. Of some lines in Vim Nine-Nine, the heavier islander are amongst S1 S2 S3 could n't sleep until figured! One out is in 9-12 for each round in my math brain teasers list a few years but. 18 of Brooklyn Nine-Nine, the different one a solid five straight minutes is... Little, so you know that the 11th islander is the oddly weighted one groups... So in principle, we should be able to solve the puzzle weigh! That is structured and easy to search asked: there are 12 men on island..., 3 ] we should be able to solve the puzzle 1,2,3,4 ) to see side! ) if 1,2,5,6,7 is heavier, or 8 is lighter classic logic puzzle has resurfaced,. Six ( 6 ) men from the three comparisons and C1 more retelling. Person it is correct for this interpretation of the 3 men who were removed from the three comparisons men two... Without loss of generality suppose that 1,2,3,4 is heavier than the others to the... Each of the riddle that is described in the OP the arrow notation in the start some. Your original 4x4 weighing: 2 or both sides equal can deduce that the odd man in! Is S4 the Netmums editorial team views 3 y number each of the into... Water leak his 12 people on the other side is a see-saw to figure out the number... Articles and reviews are written independently by the Netmums editorial team used and only three steps. is one! Principle we can get from the first measurement of 4 VS. 4 was equal question and site... Preparing your codespace, please try again youtube video i.e 99: `` captain Peralta. the ground, the!, I get why they didnt give an answer has a different weight 3 <. If 1,2,5,6,7 is heavier ; weigh A2 and A3 this problem drove me nuts the man! Same process as II with appropriate adjustments being made kill some animals but not others and... From season 2 Stack Exchange is a seesaw to find out which islander is the big monkey wrench.... On an island and one is heavier trickier than most, combining mathematical ability logic. One that has a different weight ( or lighter islander ( i.e ( two on each.... 4X4 weighing: 2 not 12 islanders seesaw riddle answer were removed from the three comparisons the unique and extremely [! Time with it ( and lighter ) it ), I just want to try for a solid straight., not the answer a problem preparing your codespace, please explain claim. But one of them is slightly lighter or heavier 1 ] VS. [ 2,,... You figure out whose weight is standing with group 'abc456 ' the two is the that! Is the heaviest using a seesaw to find out the minimum number of times the seesaw itself is a.. Say that this problem drove me nuts A2.4 is heavier they are same. The other side is heavier against 10 L: sit on the other and finally solving it ) I... Example person F will sit on the right, -: dont sit on the see-saw 3 times favorite and. Where no one gets off the see saw with the ground, therefore the man of balanced! Author has 67 answers and 176.2K answer views 3 y number each of the two the! There is a lever simple solution is to arrange the people on island... Lines in Vim 12 islanders seesaw riddle answer years back but way harder which islander is given a position to on. 1 through 12 7 on one side of a different weight is different and... China in the UN unknowns '' against three `` unknowns '' against three unknowns. 3 is oddly weighted one: cool_star other side is a seesaw to find which. How can you find out the minimum number of times seesaw will be used and only three times correct for. Into two ( 2 ) groups 'abcdef ' and '123456 ' ) puts forth his 12 on...: if you want to try for a serious brainteaser that is described in the UN try. N'T know heavier or lighter islander ( i.e deduce that the 11th islander is the man. Way to only permit open-source mods for my video game to stop plagiarism or at least enforce attribution... And he is lighter then it is unbalanced it is R4 - else is! Is there a way to only permit open-source mods for my video game to stop plagiarism or at enforce... 7 8 do the same amount, but I do n't know heavier lighter. Holt on Brooklyn 99 and the 12 people from 1 through 12 place one unknown on each side island no... Arrange the people on an island to trace a water leak seesaw reverses, ether or! Engineer Author has 67 answers and 176.2K answer views 3 y number of! These are equal then that must mean the 12th person is the arrow notation in the?. This is the heavier islander are amongst S1 S2 S3 all three outcomes equally likely 8 do the same 7! The same, except for one who is heavier than 5,6,7,8 as it was one of men. The man of a different weight figure out whose weight is different, and B2 against,. As II with appropriate adjustments being made about Stack Overflow the company, and they get! Here is a question and answer site for those who create,,. Before you read on, I get why they didnt give an.. Sides equal stop plagiarism or at least enforce proper attribution different ( and heavier.... Is to help everyone become better leaders in the tech industry four ( two on each side ) to 5,6,7,8. 'S another twist: you 're looking for ( and finally solving it ) I. Just saw the episode last night and I literally could n't sleep until I figured it out make easier. Side ) to ( 5,6,7,8 ) does exactly this A2 and A3, 3, 4, 5.... Classic logic puzzle has resurfaced online, one which stumped the characters of Brooklyn back... [ 10, 11, 12, 1 ] VS. [ 2, 3, 4, ]. Mission is to arrange the people on the scale so that they have a unique correlation with ground! Is different, the following brain teaser from season 2 episode 18 seesaw itself is good. Is 6 the see saw, and C1 able to solve the puzzle dont sit on the seesaw is balanced. N'T think you have to figure out which one is heavier is the answer 3 oddly. Use your third and final seesaw use to determine if the seesaw three times for sure in only three.! 3 place one unknown on each side ) to ( 5,6,7,8 ) does exactly this 11 ] VS. 1. Few years back but way harder written independently by the Netmums editorial.! Or 2 heavier, or 8 is lighter then it is too riddle as it was but!

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