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Four men and a boat
Posted September 18th, 2007 by nickomatic
4 men need to cross a river. They only have 1 boat which holds a max of 2 people. The slowest man always rows the boat.
It takes man 'A' - 10 mins to row across the river
man 'B' - 5 mins to row across the river
man 'C' - 2 mins to row across the river
man 'D' - 1 min to row across the river
How can they all get across the river in no more than 17 minutes?
Answer
Your puzzle is flawed.
1st trip: A & D = 10min + 1min back to shore
2nd trip: B & D = 5 min + 1 min back to shore
3rd trip: C & D = 2 min
total: 19min
You forgot to factor in the return trip to pick up the next person.
There's a way to do it
The puzzle is not flawed. Your answer is. If there's anyway I can contact you, I will let you know the answer.
There's a way to do it.
I Got it. May I post the answer?