Logic puzzles | Mathematical problems | Recreational mathematics

Rope-burning puzzle

In recreational mathematics, rope-burning puzzles are a class of mathematical puzzle in which one is given lengths of rope, fuse cord, or shoelace that each burn for a given amount of time, and matches to set them on fire, and must use them to measure a non-unit amount of time. The fusible numbers are defined as the amounts of time that can be measured in this way. As well as being of recreational interest, these puzzles are sometimes posed at job interviews as a test of candidates' problem-solving ability, and have been suggested as an activity for middle school mathematics students. (Wikipedia).

Rope-burning puzzle
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Burning the Ropes Math Puzzle solution

Here's the solution to this easy problem: http://www.youtube.com/watch?v=qH5S8s2pfWg Next puzzle: http://www.youtube.com/watch?v=B1Sst3ubt48

From playlist Tricks and Math Puzzles answers

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Burning the Ropes Math Puzzle

This time an easy problem. Measure 45 minutes by burning those ropes... Next puzzle: http://www.youtube.com/watch?v=B1Sst3ubt48 Solution: http://www.youtube.com/watch?v=8TIYWXQM9SM Related puzzle: http://www.youtube.com/watch?v=z-TcjPJK30E Previous puzzle: http://www.youtube.com/watch?v=-G

From playlist Tricks and Math Puzzles

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Burning the Ropes revisited math puzzle

New challenge with those ropes. But still, measure 45 minutes by burning them... Next puzzle: http://www.youtube.com/watch?v=STi9rEsfc7Q Solution: http://www.youtube.com/watch?v=GaLvEPINRTY Related problem: http://www.youtube.com/watch?v=qH5S8s2pfWg Previous problem: http://www.youtube.com

From playlist Tricks and Math Puzzles

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Rope Around the Earth Puzzle #shorts

You wrap a rope around the earth, then extend the rope by 1 metre. This puzzle requires no calculator, no cosmological knowledge. Just basic geometry, and some intuition.

From playlist Famous Math Problems

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Burning the Ropes revisited math puzzle solution

Here is the solution to that not so easy problem: http://www.youtube.com/watch?v=z-TcjPJK30E I hope you enjoyed it! Next puzzle: http://www.youtube.com/watch?v=STi9rEsfc7Q Previous puzzle: http://www.youtube.com/watch?v=nsxjg47BoOs

From playlist Tricks and Math Puzzles answers

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45 Seconds Challenge | Riddles | Don't Memorise

You are in dire need for a stopwatch of 45 seconds. But all you have are 2 ropes that take 60 seconds to burn from end to end and a lighter to light the ropes. But here's the catch - the ropes do not burn at a constant rate. How will you set a timer for 45 seconds using these ropes? Let u

From playlist Riddles/Puzzles/Brain Teasers

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How To Solve The Two Rope Puzzle

You have two ropes and a lighter. Each rope burns in 60 minutes, but the ropes do not burn at a constant rate. How can you measure 45 minutes by burning the ropes? Some of you might have heard this problem before. If so, try this variation: how can you measure 50 minutes? Watch the video f

From playlist Math Puzzles, Riddles And Brain Teasers

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Rope Trick for my neighborhood

During my show, a rope is spotted in my sleeve. I pull it...

From playlist My Magic

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How Do You Find The Shape of Hanging Rope? Classic Physics Problem

A rope that's hung up between two points forms a shape called a catenary. I'll show you how to derive it from start to finish. Get the notes for free here: https://courses.physicswithelliot.com/notes-sign-up When you hang up a rope between two points under the weight of gravity, it makes

From playlist Classic Physics Problems

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This COIN Puzzle is Supposed to be HARD!!

MY SHOP: https://www.1st.shop/ LIKED A SONG I USED? GET IT HERE: http://share.epidemicsound.com/Ramsay 1000's of PUZZLES Available here: http://www.puzzlemaster.ca/?a=681162 Today.s puzzle is a level 9 sequential discovery puzzle called free me 6. The goal here is to simply free the coin f

From playlist Puzzles!

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How Basic Algebra Can Make You Happy

*** JUST OUT ON PATREON *** A new sudoku hunt, Alice's Adventures In Sudokuland, has been released yesterday featuring puzzles by Panthera, TheAsylum & Montinox. Remember that patrons gets access to their own special channel on the CtC Fan Discord server - where you can find hints ;) Jo

From playlist Phistomefel Puzzles

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Tiago Hirth - On the Power of Numbers - A Study Guide - CoM Oct 2021

In 1502 (± 6) Luca Pacioli put together his De Viribus Quantitatis, a compendium of mathematical recreations and much more. It is the first collection of its size we know of. Meant for print, it was left in the calligraphy of an amanuensis until the 20th century. Together we’ll explore a

From playlist Celebration of Mind 2021

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Cut-The-Knot Action!

Link: https://www.geogebra.org/m/JEk3MHvc

From playlist Geometry: Challenge Problems

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The Wonders of Physics #22

World Year of Physics University of Wisconsin - Madison Executive Producer and Host: Clint Sprott

From playlist The Wonders of Physics with Prof. Sprott - CosmoLearning.com

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Big O notation | Water pouring puzzle | Well-order | Knuth's up-arrow notation | Dyadic rational | Rational number | Integer | Mathematical puzzle | Paul Erdős | Power of two | Recreational mathematics | Ordinal number | Unit fraction | Egyptian fraction