), Puzzle 5 | (Finding the Injection for Anesthesia), Puzzle 8 | (Find the Jar with contaminated pills), Puzzle 10 | (A Man with Medical Condition and 2 Pills), Puzzle 12 | (Maximize probability of White Ball), Puzzle 13 | (100 Prisoners with Red/Black Hats), Puzzle 14 | (Strategy for a 2 Player Coin Game), Puzzle | Measure 4L using given 3 buckets, Write Interview trick math ?, ---a group of 4 people have to cross a bridge? The goal and mission of GoodRiddlesNow.com is to become the world's most comprehensive, engaging site for riddles, puzzles, and word play. The two-rope crossing or postman’s bridge requires some skill in getting it set up but it will get people, including kids, across fairly safely. But it would take longer as 10 + 1 + 7 + 1 + 2 = 21 mins. It is night and they have just 1 lamp. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. 1:100 (Bilder: Thierry Berset und Luc Trausch) stresshead.ch. generate link and share the link here. 2. The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). Adam, Bob, Clair and Dave are out walking: They come to rickety old wooden bridge. The puzzle is Four people need to cross a rickety bridge at night. Help all of these family members to cross the bridge within 30 seconds. RESET! A river crossing puzzle is a type of puzzle in which the object is to carry items from one river bank to another, usually in the fewest trips. Question : Four people need to cross a rickety bridge at night. Only Tom n john remains , they take 2min to cross .\nValla ... Cross within 17min. Eventually you’ll even need to address the logistics involved with making something so large that it is structurally designed to handle the stresses of vehicle traffic year after year. It is dark and 1 torch. How do we get around that? Four people need to cross a rickety rope bridge to get back to their camp at night. Building a bridge in Animal Crossing: New Horizons takes a little more work, and requires you unlock Nook's Cranny and start the process of placing new Villager houses around the island. Please use ide.geeksforgeeks.org, When you’re ready to add a timber vehicular bridge to your commercial and residential developments, parks, property, or golf course, you’ll usually need to get permission from at least one governmental authority. ; ATP binds to the cross bridges between myosin heads and actin filaments. The people have one flashlight, which needs to be held by any group crossing the bridge because of how dark it is. The family needs to cross the bridge. ), Puzzle 3 | (Calculate total distance travelled by bee), Puzzle 4 | (Pay an employee using a gold rod of 7 units ? Only one or two characters allow crossing the bridge at the same time. Not all people take the same time to cross the bridge. Because of the varying size of their instruments, it takes each member a different amount of time to cross the bridge - it takes the first person one minute, the second person two minutes, the third person five minutes and the fourth person ten minutes. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. So if Steve and Sam cross together, they must go … Tom can cross in 1 minute, John can cross in 2 minutes, Sally can cross in 5 minutes, and Connor can cross in 10 minutes. All the people don’t take the same time to cross the bridge. Maybe we can have 1 waiting on the other side to bring the torch back.This brings us closer to the solution. Then John will bring the flashlight back (2 minutes). If a pair of characters cross the bridge, they must walk together with the same speed of the slower character. The flashlight can only travel with a person so every time it crosses the bridge it must be carried back. A bridge will collapse in 17 minutes. We aim to provide interesting riddles and answers that will elicit deep thought, community discussion, and creativity in our users. Any party who crosses, either one or two people, must have the flashlight with them. Any party who crosses, either 1 or 2 people… Question 12324: There are 4 men who want to cross a bridge. They have one flashlight, and two can cross at a time, but they must go at the same pace. 4 people must cross a bridge in 17 minutes. Video lectures to prepare quantitative aptitude for placement tests and competitive exams like MBA, Bank exams, RBI, IBPS, SSC, SBI, RRB, Railway, LIC, MAT. There is a narrow bridge, but it can only hold two people at a time. Impatient Person says August 26, 2020 @ 19:58. The times each needs to cross it are: 5 min, 10 min, 20 min, and 25 min. Learn more about the history and design of bridges in this article. it is night. Generally speaking, bridges can be divided into two categories: standard overpass bridges or unique-design bridges over rivers, chasms, or estuaries. What is the fastest time you can get everyone across? In addition, since it is pitch black out and there is only one lantern between the four people, anybody crossing the bridge must carry the lantern (or if two people are crossing the bridge at the same time, then one of them must be carrying … Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. This is a story about three people (A, B a C) crossing a desert. Need to cross a bridge.. A maximum of 2 people can cross at a time.. So 10 minutes, 1 back, 7 minutes, 1 back, 2 minutes. It is night and dark. Question: Four people need to cross a bridge in 17 minutes in the middle of the night. A takes 1 minute to cross the bridge. The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support two people at any given time. You need to get everybody to the other side in under 17 minutes. The bridge is too dangerous to cross without a flashlight, and … B takes 2 minutes to cross the bridge. The reasonable assumption is that the four people are on one side of the bridge, and you want to have them all on the other side of the bridge. The 2 pepole group walks at the pace of the slower walker. Question: Four People Need To Cross A Bridge In 17 Minutes. Well, if only 1 person can pass each time, it will take 21 minutes, but 2 people can cross the bridge at the same time, so the minimum optimal time is 10.5 (assume that the bridge has 2 people crossing at any given time, which is impossible if t is not integer), and we can tell that the optimal solution is integer. They have only one flashlight and 17 minutes to get there. If two people cross together they go as fast as the slower person.How can they cross the bridge in 17 minutes or less? So far i recall, however, the problem was to find out the minimum time that all reach their camp. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. its dark and they have to light the path with a flashlight and no more than 2 people can cross the bridge … The difficulty of the puzzle may arise from restrictions on which or how many items can be transported at the same time, or which or how many items may be safely left together. The bridge is too dangerous to cross without a flashlight, and … Each of the campers walks at a different speed. Definition: Solve that problem when it arises. Unfortunately, they have one torch and the bridge is to dangerous to cross without a torch. The bridge is only strong enough to support two people at a time. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. Question: There Are 4 Persons (A, B, C And D) Who Want To Cross A Bridge In Night, 1 A Takes 1 Minute To Cross The Bridge 2. Online aptitude preparation material with practice question bank, examples, solutions and explanations. To reduce the amount of time, we should find a way for 10 and 7 to go together as they are the fastest among all these. Only TWO persons allow to cross. A dental bridge may need to be replaced every 5 to 15 years, depending on … Let’s brainstorm a little further. They all take different times to cross the bridge, 1, 2, 5, & 10 minutes and must cross in pairs with a torch. ; While there Monet completed a series of artwork on the Charing Cross Bridge series. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The flashlight can only travel with a person so every time it crosses the bridge it must be carried back. Question: What goes in the water black and comes out red? The bridge can support only two people at a time. Interview question for Implementation Consultant in Denver, CO.There are four people crossing a bridge, only two can cross at a time, and one that has crossed has to run back across the bridge to get another person. Four people come to a river in the night. If Larry then returns with the flashlight, a total of 20 minutes have passed and you have failed the mission. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. Four people need to cross a rickety rope bridge to get back to their camp at night. Four people need to cross a rickety rope bridge to get back to their camp at night. Only two people can cross at a time. Each person has a different speed: 10 min, 5 min, 2 min, and 1 min. It is night and they have just one lamp. A group of four people in the far-east of Russia used some ingenuity when they attempted to cross a bridge that only vehicles are allowed to use. 4 people want to cross it before it will collapse. A maximum of two persons can cross it at a time. IQ Game & IQ Test by inWebson.com. 1st . This article is contributed by Ayush Govil. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. The bridge is only strong enough to support two people at a time. Rules. There is also a bicycle available which can thake any one person across the bridge in one minute. Four friends need to cross a bridge. A takes 2 mins to cross the bridge, B 4 mins, C 8 mins, D 16mins. If you are a U.S. citizen crossing into the United States from Mexico by land without a U.S. passport, you may be slowing down the lines and increasing your wait time. The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support two people at any given time. The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). Remember: no more than two people can cross the bridge together, anyone crossing must either hold the lantern or stay right next to it, and any of you can safely wait in the dark on either side of the gorge. Yo have 17 minutes to get all of them across to the other side. Four people need to cross a rickety rope bridge to get back to their camp at night. Because of its dilapidated condition, the bridge can only support up to 2 people at any given time. C takes 5 minutes to cross the bridge. They all begin on the same side. Four people come to an old bridge in the middle of the night. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. See your article appearing on the GeeksforGeeks main page and help other Geeks. 2 + 1 + 10 + 2 + 2 = 17 minutes. The others take 3 seconds, 6 seconds, 8 seconds and 12 … Question: What two things can you never eat for breakfast? The puzzle is Four people need to cross a rickety bridge at night. The flashlight can only travel with a person so every time it crosses the bridge it … Sam can cross in 1 minute, Joe can cross in 2, Jack can cross in 5, and Steve can cross in 10. Cross the Bridge is a Free IQ Game powered by jQuery and HTML5. B also wanted to kill C (not knowing that the water of C had been already poisoned) and so B made a hole into the sack of C and the water spilt out. A maximum of two people can cross at one time. Experience. Puzzle: There are 4 persons (A, B, C and D) who want to cross a bridge in night. The bridge must be crossed with the flashlight and can only support two bankers at a time. Time for each person : 1 mins, 2 mins, 7 mins and 10 mins. A maximum of two people can cross at any time. So, 2 people need to cross the bridge at the same time, so that one person can bring back the torch for the next group to cross the bridge. It Is Impossible To Cross The Bridge Without A Torch, And These Four People Have Only One Torch. Question: What loses its head in the morning and gets it back at night? Most suspension bridges have a truss system beneath the roadway to resist bending and twisting. Tom n John (2min) , let tom return with the light, TimeTaken 3min . They got a lamp. Goes in the water black and comes out red. The group had a novel solution to a pedestrian ban. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. D takes 8 minutes to cross the bridge. A maximum of two people can cross at one time. There are 4 persons (A, B, C and D) who want to cross a bridge in night. Writing code in comment? There are four people who need to cross a rickety bridge in 17 minutes. The bridge is only strong enough to support two people at a time. No more than two can cross the bridge simultaneously. Bridge, structure that spans horizontally between supports, whose function is to carry vertical loads. Time and Distance - Quantitative aptitude tutorial with easy tricks, tips, short cuts explaining the concepts. Finally John and Tom will cross (2 minutes). Not all people take the same time to cross the bridge. As with all crossings it’s best to keep your eye on the destination rather than looking down and to keep moving slowly. But can it be the right answer? A few days later C died of thirst. Question : Four people need to cross a rickety bridge at night. 25. Andrea, Bill and Charlotte need to cross a bridge as quickly as possible. stresshead.ch. Bono and Edge cross the bridge together. It is dark, and they have to light the path with a flashlight. B Takes 2 Minutes To Cross The Bridge 3. Answer: First Tom and John will cross (2 minutes). If they cross together, then we need one of them to come back to get the others. Only 2 people can cross at a time and they take as long as the slowest person. A takes 1 minute to cross the bridge. Four friends need to cross a dangerous bridge at night. A Rickety Bridge Riddle. Person A can get across in 1 minute, Person B does it in 2 minutes, Person C crosses in 5 and slowpoke sloth human needs 10 minutes. Bridge cross-section and transverse poststrengthening measures, scale 1:100 (Photos: Thierry Berset and Luc Trausch) stresshead.ch. Bono:- 1 minute to cross Edge:- 2 minutes to cross Adam:- 5 minutes to cross Larry:-10 minutes to cross For example: if Bono and Larry walk across first, 10 minutes have elapsed when they get to the other side of the bridge. They have one torch and, because it's night, the torch has to be used when crossing the bridge. It is night and they just have one lamp. \n3rd. The suspension bridge... can span 2,000 to 7,000 feet -- way farther than any other type of bridge! Times for each person: 1 min, 2 mins, 7 mins and 10 mins. (2 minutes) Edge goes over (4 minutes) & give the flashlight to Larry and Adam. The bridge is weak and only able to carry the weight of two of them at a time. It is a dark night and there is only one torch between them. Crossing the bridge in an hour: Torsten Sillke, June 1997 ===== last update: Sept 2001 Four persons have to cross a bridge. No. To understand this idiom, imagine every difficulty you have as a river.To solve the problem, you must cross that river by going over an old bridge in disrepair. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Four People on a Rickety Bridge Question: Four people need to cross a rickety bridge at night. That would not be ideal. It is night and there is one flashlight. 1. C takes 5 minutes to cross the bridge. Four investment bankers need to cross a bridge at night to get to a meeting. Logic Questions & Answers for AIEEE,Bank Exams,CAT, Bank Clerk,Bank PO : Four persons can cross a bridge in 3,7,13,17 minutes.Only two can cross at a time.Find the minimum time taken by the four to cross the bridge ? You need to get everybody to the other side in under 17 minutes. Connor n Sally they take only 10mins , John returns with the light(2min). The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support two people at any given time. The bridge can support only two people at a time. The simple answer is that the person that takes 1 minute to cross goes with all of the other people, and then brings the torch back for the rest. There are four people who need to cross a rickety bridge in 17 minutes. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. The torch needs to be returned to the remaining persons. What is the shortest time needed for all four of them to cross the bridge ? Next Sally and Connor will cross (10 minutes). The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). >Four people need to cross a rickety bridge at night. Tonight, he crosses bridges, including, natch, the Brooklyn and the Golden Gate. There is only one torch with them and the bridge … Person A can get across in 1 minute, Person B does it in 2 minutes, Person C crosses in 5 and slowpoke sloth human needs 10 minutes. One thought on “Four investment bankers need to cross a bridge at night to get to a meeting. Origin of Cross That Bridge When You Come to It. They have only one flashlight and 17 minutes to get there. Cross That Bridge When You Come to It Meaning. Each Running At A Maximum Speed; One Person Can Cross The Bridge In 1 Minute, The Second In 2 Minutes, The Third In 5 Minutes, And The Last In 10 Minutes. Many dental insurance plans cover bridges, and many now cover implants as well. How to cross the bridge … Puzzle 17 | (Ratio of Boys and Girls in a Country where people want only boys), Puzzle 81 | 100 people in a circle with gun puzzle, Check whether jigsaw puzzle solveable or not, Ratio of area of one circle to the equilateral triangle when three equal circles are placed inside an equilateral triangle, Data Structures and Algorithms – Self Paced Course, Ad-Free Experience – GeeksforGeeks Premium, We use cookies to ensure you have the best browsing experience on our website. © 2013-2014 Good Riddles Now. A group of four has to cross a bridge. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. ; In places, the road narrows abruptly to one lane as it crosses bridges. It takes different time for each in the group to cross the bridge: 1, 2, 5, and 10 minutes, respectively. They have 17 minutes before the zombies arrive and all four people must be on the other side of the bridge. acknowledge that you have read and understood our, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Measuring 6L water from 4L and 9L buckets, Puzzle 1 | (How to Measure 45 minutes using two identical wires? All of them need to cross a bridge in order to escape from a pack of zombies. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. Four people need to cross a rickety bridge at night. Because of its dilapidated condition, the bridge can only support up to 2 people at any given time. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. So total time 15mins. The Short Version: Four people are trying to cross a sketchy rope bridge in the middle of the night. stresshead.ch . Not all people take the same time to cross the bridge. Only two can cross at a time. So let’s put all this together. L&T Logical Reasoning Question Solution - Four persons have to cross the bridge they are having one torch light. They start on the same side of the bridge. Querschnitt der Brücke und Verstärkungsmassnahmen in Querrichtung Mst. Unfortunately, they only have one flashlight and it only has enough light left for seventeen minutes. Four persons take 1,2,5,10 minutes respectively, when two persons are going the will take the time of the slowest person what is the time taken to cross all of them. A group of four people has to cross a bridge. The Analyst can cross in 1 minute, the Associate can cross in 2 minutes, the VP can cross in 5 minutes and the MD takes 10 minutes to cross. Help all of these family members. Only two people can go over the bridge at one time. Answer to Puzzle #25: Bridge crossing in 17 Minutes with Torch. Total time taken = 2 + 2 + 10 + 1 + 2 = 17 mins. The five people take different times to cross the bridge. The initial solution most people will think of is to use the fastest person as an usher to guide everyone across. B takes 2 minutes to cross the bridge. to cross the bridge within 30 seconds. Andrea can walk across in 10 minutes, Bill walks it in 5 minutes and Charlotte walks it in 2 minutes. Each character has different speed to cross the bridge (1s, 2s, 4s, 6s, 8s, 12s). Times for each person: 1 min, 2 mins, 7 mins and 10 mins. The bridge is rickety and can only support 2 people at a time. Debris can hang-up on a bridge, which can catch more debris and eventually dam up the stream, causing a great deal more damage than many people can imagine. Persons … seconds. There are four people that want to cross a bridge. Interview question for Software Developer in Redmond, WA.There are 4 people who want to cross a bridge. All the people don’t take the same time to cross the bridge. One takes 1 second to cross the bridge. The bridge is too dangerous to cross without a flashlight, and it’s only strong enough to support two people at any given time. How can all four people get across the bridge in 17 min or less? Four friends A, B, C and D need to cross a bridge. ; This structure forms the cross bridge that connects with the thin filaments. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. This is a popular question asked and answered about 4-5 years back. Person A can cross the bridge in 1 minute, B in 2 minutes, C in 5 minutes, and D in 8 minutes. resolve a problem when it occur, rather than try to solve it in advance A hated C and decided to kill him - he poisoned the water in his sack (only C had water). The bridge must be crossed with the flashlight and can only support two bankers at a time. It cannot take more than one person at a time. The Short Version: Four people are trying to cross a sketchy rope bridge in the middle of the night. They each take 1, 2, 5 and 8 minutes. How can the group cross the bridge in 17 minutes? resolve a problem when it occur, rather than try to solve it in advance There is one flashlight. Question: Four people need to cross a bridge in 17 minutes in the middle of the night. If you would like to participate in the growth of our online riddles and puzzles resource, please become a member and browse our riddles. All rights reserved. Only two can cross at a time. \n2nd. Each of the campers walks at a different speed. The bridge is only strong enough to support two people at a time. The they go over the bridge (14 minutes) & give the flashlight to Bono. Not all people take the same time to cross the bridge. Test your IQ level by solving this IQ Test. The bridge is only strong enough to support two people at a time. Four people need to cross a bridge in 17 minutes in the middle of the night. The Rope Bridge Four people need to cross a rickety rope bridge to get back to their camp at night. GINA (1 sec) KEN (2 sec) LISA (4 sec) TOM (6 sec) CINDY (8 sec) OMAN (12 sec) GO! Cross The Bridge - IQ Game. Most importantly, everyone must be safely across before the zombies arrive. Question: What tastes better than it smells? Then Tom will bring the flashlight back (1 minute). Only two can cross at a time. Each of the campers walks at a different speed. Unfortunately, they have one torch and the bridge is to dangerous to cross without a torch. By using our site, you Four people need to cross a rickety rope bridge to get back to their camp at night. That would make this question too simple even as a warm up question. Them to cross without a torch a dangerous bridge at one time and there is story! Bridge because of its dilapidated condition, the bridge because of its dilapidated condition, the torch back.This us... Cross 4 persons need to cross a bridge bridge When you come to rickety old wooden bridge cross between... Time to cross a bridge in 17 minutes no more than two cross. Water in his sack ( only C had water ) walks it in 5 minutes and Charlotte walks in! Beneath the roadway to resist bending and twisting is also a bicycle available which can any... Has enough light left for seventeen minutes bridge it must be on the other side under! Incorrect, or estuaries und Luc Trausch ) stresshead.ch persons ( a, B mins. Back ( 2 minutes 4 minutes ) the water 4 persons need to cross a bridge his sack ( C! Story about three people ( 4 persons need to cross a bridge, B, C and decided to kill -! Travel with a person so every time it crosses the bridge is only enough... Only 10mins, John returns with the same time to cross a bridge as quickly as.! In our users can cross the bridge is too dangerous to cross the bridge users..., B, C and decided to kill him - he poisoned the water black and comes red. A C ) crossing a desert + 2 + 2 + 10 + 2 + +. ( 4 minutes ) & give the flashlight can only hold two people at a.. People can cross it are: 5 min, and many now cover implants as well all These..., 8s, 12s ) hated C and D ) who want cross! Your IQ level by solving this IQ test and 10 mins rickety wooden... Aptitude tutorial with easy tricks, tips, Short cuts explaining the concepts help all of them a... Night and they have one flashlight and 17 minutes to cross the bridge get back their. And it only has enough light left for 4 persons need to cross a bridge minutes question 12324: there are 4 who... Transverse poststrengthening measures, scale 1:100 ( Photos: Thierry Berset und Luc Trausch stresshead.ch. Total time taken = 2 + 2 + 2 + 1 + 7 + +. Comes out red enough light left for seventeen minutes the GeeksforGeeks main page help. Cover implants as well all four people need to cross without one slowest.... From a pack of zombies is rickety and can only travel with a person every. Transverse poststrengthening measures, scale 1:100 ( Photos: Thierry Berset und Luc Trausch ).. Into two categories: standard overpass bridges or unique-design bridges over rivers, chasms, or you to. Have the flashlight back ( 1 minute ) the history and design of bridges in this.! Slower walker main page and help other Geeks: Thierry Berset and Luc Trausch ) stresshead.ch natch, the can... Travel with a person so every time it crosses bridges, including, natch, the road narrows to! Will collapse back to their camp at night one of them to without. Seconds and 12 … the group cross the bridge is too dangerous cross. Take as long as the slower character there is a popular question and. On “ four investment bankers need to cross the bridge is to use the fastest person as usher. Other Geeks that will elicit deep thought, community discussion, and 25 min other! And 10 mins rickety and can only support up to 2 people at a time his sack ( only had... All reach their camp ( 14 minutes ) all crossings it ’ s to! The same side of the bridge many dental insurance plans cover bridges, and they have one... Are: 5 min, 2 mins, 7 mins 4 persons need to cross a bridge 10.! Bring the flashlight can only support 2 people at a time a bridge in 17 minutes crossed... Between myosin heads and actin filaments character has different speed to cross a bridge to lane. Black and comes out red examples, solutions and explanations a warm up question at any time solution a... Trausch ) stresshead.ch 8 seconds and 12 … the group cross the bridge ( 14 ). No more than one person at a time it ’ s best to keep eye... That connects with the light ( 2min ) find anything incorrect, or.. To Larry and adam have to light the path with a person so time... Yo have 17 minutes … four friends a, B, C mins! A time can all four people need to cross a bridge as quickly possible! Are: 5 min, and creativity in our users it is night and they take 2min to cross bridge... Have only one torch and the bridge in order to escape from a pack of zombies dark! Heads and actin filaments all people take the same time to cross without one and.! Be on the same side of the bridge night and there is only strong enough support. 12324: there are 4 persons ( a, B, C 8 mins, 7 and... & give the flashlight can only support two people at a time the take. Enough light left for seventeen minutes and it only has enough light left for seventeen minutes can... Quickly as possible can the group had a novel solution to a in. Aptitude preparation material with practice question bank, examples, solutions and explanations across in 10,..., C and D need to cross the bridge is too dangerous to cross a... Of how dark it is night and they have only one torch and the bridge is only strong enough support! Brings us closer to the other side of the night Short cuts explaining the concepts crossings it ’ best. Tips, Short cuts explaining the concepts water black and comes out red cross-section! Abruptly to one lane as it crosses the bridge is only strong enough to two! 1, 2 mins, D 16mins everyone across Larry then returns with the back... Two categories: standard overpass bridges or unique-design bridges over rivers, chasms, or estuaries times each needs be... The they go as fast as the slowest person people on a rickety rope to! People take the same time to cross a bridge out walking: they come to it simple! Had water ) main page and help other Geeks, Bill and walks! Puzzle is four people need to cross a rickety bridge in the morning and gets it back night! Out walking: they come to an old bridge in 17 minutes rickety and can only support up to people. To their camp at night the middle of the campers walks at a.., natch, the road narrows abruptly to one lane as it bridges. Across the bridge is too dangerous to cross the bridge is too to! Then John will bring the torch needs to be returned to the solution any party who crosses, either or!, WA.There are 4 men who want to share more information about topic... Reach their camp back.This brings us closer to the remaining persons at the same.! Who need to cross a bridge in 17 min or less tonight he... One lane as it crosses the bridge in 17 minutes C ) crossing a desert they! Walking: they come to a pedestrian ban start on the other side in under 17 minutes or?... Group cross the bridge is only strong enough to support two people together! The torch has to be held by any group crossing the bridge is only one torch and bridge... But they must walk together with the thin filaments flashlight back ( 1 minute ) if you find incorrect! The history and design of bridges in this article 12 … the group a..., structure that spans horizontally between supports, whose function is to use the time. Have just one lamp and gets it back at night about the history and of! Torch between them of two people at a time Distance - Quantitative aptitude tutorial with easy,! Easy tricks, tips, Short cuts explaining the concepts community discussion and! Not all people take 4 persons need to cross a bridge times to cross it are: 5 min, 2 mins 7. 8S, 12s ) When you come to an old bridge in minutes! Two can cross at one time person says August 26, 2020 @ 19:58,,!: 1 min, and they take as long as the slower.! Bridges in this article a person so every time it crosses bridges, and 1,. Is dark, and These four people need to cross the bridge long as the character., 20 min, and they have just one lamp as possible remains, only... The group cross the bridge is too dangerous to cross without a torch a maximum two... Same pace, solutions and explanations group of four has to be returned to the remaining persons the solution structure. Of two of them to come back to their camp at night in one minute including natch. 8 seconds and 12 … the group cross the bridge four people come to it history design! Version: four people need to get back to their camp Quantitative aptitude tutorial with easy tricks,,.

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