Question

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.

Answer 1

not understand the question

Answer 2

OMG
see I think we can start from the first Floor itself and go on up
and when our first coconut breaks
we will go up by one more Floor