Four Scouts have to cross a dangerous bridge to get to their campground. It is nighttime and they have one candle between them, which will burn for a mere 17 minutes after it is lit. If the candle goes out once it is lit, they have no way to re-light it. The bridge will hold, at most, two Scouts, at a time with each group; it cannot be thrown or it will go out. each Scout walks at a different rate, and any two Scouts walking together must walk at the rate of the slower camper’s rate. The Scouts walk at the following rates: Carolyn 1 minute to cross Amanda 2 minutes to cross Jo 5 minutes to cross Tony 10 minutes to cross Can they make it across, and of so how?
Four Scouts have to cross a dangerous bridge to get to their campground. It is nighttime and they have one candle between them, which will burn for a mere 17 minutes after it is lit. If the candle goes out once it is lit, they have no way to re-light it. The bridge will hold, at most, two Scouts, at a time with each group; it cannot be thrown or it will go out. each Scout walks at a different rate, and any two Scouts walking together must walk at the rate of the slower camper’s rate. The Scouts walk at the following rates:
Carolyn 1 minute to cross
Amanda 2 minutes to cross
Jo 5 minutes to cross
Tony 10 minutes to cross
Can they make it across, and of so how?
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