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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.
The two solutions with the vertical axis denoting time, and brown, grey, green and beige paths denoting the wolf, goat, cabbage and boat, respectively The first step that must be taken is to let the goat go across the river, as any other actions will result in the goat or the cabbage being eaten.
Well-known river-crossing puzzles include: The fox, goose, and bag of beans puzzle, in which a farmer must transport a fox, goose and bag of beans from one side of a river to another using a boat which can only hold one item in addition to the farmer, subject to the constraints that the fox cannot be left alone with the goose, and the goose cannot be left alone with the beans.
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There is even enough additional freedom on the torus to solve a version of the puzzle with four houses and four utilities. [ 21 ] [ 5 ] Similarly, if the three utilities puzzle is presented on a sheet of a transparent material, it may be solved after twisting and gluing the sheet to form a Möbius strip .
Tower Bridge (California) This is a list of the crossings of the Sacramento River from its mouth at Suisun Bay upstream to the Ribbon Bridge in Redding. There are many more bridges north of this point up to Lake Siskiyou, immediately east of the source of the river at the confluence of the South and Middle Forks of the Sacramento River.
The bridge has the second longest cable-stayed span (distance between towers) in the Western Hemisphere at 1,583 ft (482 m), after Mexico's Baluarte Bridge with a 1,706 ft (520 m) span, and has a total length of 12,883 ft (3,927 m)—nearly three-and-a-half times longer than the Baluarte Bridge's 3,688 ft (1,124 m) total length.
The Verige bridge (Montenegrin: Мост Вериге, Most Verige) is a planned bridge in Montenegro that would span the Bay of Kotor, crossing the Verige Strait at its narrowest point. It will be part of the Adriatic Highway (Jadranska magistrala). As of 2007, the planning stage of the bridge is completed, and construction of the bridge can ...