What is the fastest way?
On their way to the hotel, four hikers come across a dilapidated suspension bridge shortly before midnight.
They only have a flashlight with them, and the batteries are running low. But without light, it's far too dangerous to cross the bridge.
In addition, no more than two people dare to walk on the bridge at a time for fear that it will collapse.
Everyone moves at a different speed. The first person takes 2 minutes to cross the bridge, the second 4 minutes, the third 8 minutes, and the fourth 10 minutes.
How many minutes do they need to get across as quickly as possible?
(1 votes)
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12 minutes. The second-slowest and the slowest go on together. As soon as the second slowest is over, the one that needs 4 minutes will follow the one that only needs 2 minutes later. Since the third breaks up 8 minutes after the first, and the slowest arrives 2 minutes after the second slowest one over, only a maximum of 2 people are on the bridge.
Did you forget the necessary flashlight?
The genius of the group should shine bright enough …
The fastest swings
10 + 2 +
8 + 2 +
4 + 2 +
2 = 30
Why is the fastest going back and back?
Or how to read it?
(10, 2) = 10 mints
2 back = 12 mins
(8,2) = 20 minutes
2 back = 22 minutes
(4.2) to = 26 minutes
Sure, the last one doesn’t have to go back to&zurück
I’m talking about it. The fastest doesn’t have to go back and forth.