The 9 min Pasta Timer Puzzle

September 18, 2010 at 11:23 pm Leave a comment

It’s the Friday Puzzle!

Today I have to make dinner and have to boil some pasta for exactly 9 minutes. However, I only have two hourglasses. One of them measures 7 minutes and the other measures 4 minutes.
Can I use the hourglasses to time exactly 9 minutes?


Entry filed under: .en, .math, .puzzle, .time, .timer, 9 min Pasta Puzzle, The 9 min Pasta Timer Puzzle. Tags: , , , .

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