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Fun Bridge Puzzle?
Sente, Violet, Scarlett and Kurt have spent the day hiking in the hills to the south of the city. On their way home is a rickety old bridge that's only strong enough for two of them to be on it at the same time.
The light is fading fast and so they need to use a flashlight every time they making a crossing. The bridge is too long and narrow to throw the flashlight across, so someone will always have to carry it back and forth. What's more, Sente was injured earlier in the day and will take 10 minutes to cross the bridge. Scarlet can cross in 5 minutes, Kurt in 2 minutes and Violet in just 1 minute. A storm is brewing and they can't waste any time. Kurt thinks for a moment and claims they can all cross the bridge in just 17 minutes. How?
Puzzle From Perplex City
I think I finally have it, but I’m not sure.
The facts that I gathered were;
1.)The bridge is only strong enough to hold two of them at a time.
2.)There's only one flashlight, that has to be used with each crossing.
3.)It cannot be thrown back and forth due to the bridge being too long and narrow.
4.)Someone has to carry it back and forth (which lead me back to fact one)
Knowing that Sente and Scarlet take the most amount of time crossing, you don't want these two crossing separately, but you instead want them crossing together. I figured that they couldn't go first because one of them would have to walk back and that wouldn't make the time of 17 minutes. I then tried to make it a specific person going back and forth, but that didn't seem to work either. After writing the times on separate pieces of paper, playing/working around with them for what seemed like countless hours, I came up with this solution.
Kurt & Violet (2)
Kurt (2)
Sente & Scarlet (10)
Violet (1)
Kurt & Violet (2)
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