Couples Crossing the River Puzzle
Puzzle on Couples to Cross a River
Three couples are on vacation together. To get to their hotel, crossing the river is the only method.
Premise – Three couples have gone on a vacation together.
Rules – The following are the three rules:-
- First and foremost, the boat can only transport two persons at a time. If a third person attempts to board the boat, the vessel will sink.
- Husbands are so envious of their wives that they will not allow her to be with another man without their presence.
- The boat must not be able to run on its own. To get from one side to the other, at least one person needed to be on the boat.
Objective – How many trips will it take them to cross the river altogether?
Solution for Couples Crossing the River Puzzle
Let the 3 couples wear green, red and blue dresses. Green wives and green husbands, red wives and red husbands, and blue wives and blue husbands should all exist.
Step 1: The green couple will proceed to the hotel side, while the green husband returns with the boat.
(2 steps)
Step 2: The red and blue wives will now proceed to the hotel side, with the red wife returning with the boat.
(2 steps)
Step 3: The blue couple will return with the boat, while the green husband and blue husband will move to the hotel side.
(2 steps)
Step 4: The red and blue husbands will proceed to the hotel side, while the green wife returns with the boat.
(2 steps)
Step 5: The red and blue wives will proceed to the hotel side, with the blue wife returning with the boat.
(2 steps)
Step 6: Lastly, blue and red wives will proceed to the hotel side.
(1 step)
As a result, there will be 11 phases in all.
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