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You have two coconuts and you want to find out how high they can be dropped from a 100 story building before they break. But you only have $1.40 and the elevator costs a dime each time you ride it up (it's free for rides down).

How can you drop the coconuts to guarantee you will find the lowest floor they will break at, while starting and ending at floor 1?

Note: They break when dropped from the same height and they don't weaken from getting dropped.

jakesplace  Apr 11, 2018
 #1
avatar+428 
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give me a answer

jakesplace  Apr 11, 2018
 #2
avatar+428 
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very hard

jakesplace  Apr 11, 2018
 #3
avatar+106 
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they dont 

foxy02  Apr 11, 2018
 #4
avatar+428 
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You could drop it at floor 1 first (because you start at floor 1). Then you would go to the floors: 14, 27, 39, 50, 60, 69, 77, 84, 90, 95, 99, and 100. Whatever floor your first coconut breaks at, go to the floor above the last floor the coconut survived and drop the second coconut from this floor. Then go up by one floor until the second coconut breaks and that is the lowest floor it will break at.

jakesplace  Apr 11, 2018

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