Puzzle #94: Two Eggs and a Building

This is another beauty of a puzzle from Gurmeet’s puzzle collection at gurmeet.net/puzzles/, thanks Gurmeet!

With two eggs and a building with 100 floors, what is the optimal strategy for finding the lowest floor at which an egg will break when dropped?

As a hint, think of the same problem with only one egg – in this situation, the only option you have is to linearly try dropping the egg from each floor beginning from Floor 1 upwards until it breaks. What can you do differently if there are two eggs?

As always, please send your answers directly to me at alokgoyal_2001@yahoo.com. If you like the puzzle, please share it with others. If you have interesting puzzles to share, please send them to me at my e-mail given above.

Happy egging!

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