How Would You Move Mount Fuji
Because I haven't actually had to use my brain in over a year, I decided to pick up a couple of books to read this week instead of watching Law and Order 19 times. One of the books that I picked up is How Would You Move Mount Fuji, a book on how Microsoft and other companies use puzzles in their hiring process. Pretty good read so far.
Anyways, in the book they have a whole section of puzzles to work with so I thought it'd be interesting to throw around ideas and the such on how to solve them. Some of them are what they call impossible questions that may have four, ten or maybe one million correct answers. Some of them have a definite answer. I had already seen and worked out quite a few of these in the past, so if you've done that don't just blurt out the answer to look cool. Or use the internet to find the answer. Use your brain. If you lack a brain, keep your damn mouth shut.
So the first puzzle (and probably the easiest): You have eight billard balls. One of them is "defective," meaning that it weighs more than the others. How do you tell, using a balance, which ball is defective in two weighings?
Posted by Phil on April 26th, in the middle of the night |
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