Search results
Results from the WOW.Com Content Network
There is a narrow bridge, and it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person A can cross the bridge in 1 minute, B in 2 minutes, C in 5 minutes, and D in 8 minutes. When two people cross the bridge together, they must move at the slower person's pace.
Four Hang; Two Point the Way is the name given by the folklorist Archer Taylor to a traditional riddle-type noted for its wide international distribution. The most common solution is 'cow', and in Taylor's view 'we can probably infer that a cow was the original answer'. [1]: 610
The standard puzzle of this kind works with three jugs of capacity 8, 5 and 3 liters. These are initially filled with 8, 0 and 0 liters. In the goal state they should be filled with 4, 4 and 0 liters.
To answer more carefully, let’s assume each glass has 100 milliliters (mL) of each liquid to start with: Alan’s has 100 mL of whisky and Claire’s has 100 mL of water.
If the solution line starts somewhere else, the observer will see the solution line enter and leave (two walls), enter and leave a second time (two more walls) and finally enter through the fifth wall and end (all five walls have been crossed, so the line cannot get back out of the room again).
Loyd's puzzle "The Quarrelsome Neighbors" similarly involves connecting three houses to three gates by three non-crossing paths (rather than nine as in the utilities problem); one house and the three gates are on the wall of a rectangular yard, which contains the other two houses within it. [8]
[1] Five room puzzle – Cross each wall of a diagram exactly once with a continuous line. [2] MU puzzle – Transform the string MI to MU according to a set of rules. [3] Mutilated chessboard problem – Place 31 dominoes of size 2×1 on a chessboard with two opposite corners removed. [4] Coloring the edges of the Petersen graph with three ...
In theory, the second rope burns out in 15 s, giving a total of 45 s. 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.