25 May 2014

187. Changing 3 to 9

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How would you change the value of the 3 matchsticks to 9 without breaking any sticks? All sticks don't have to be flat on the surface and you may only move 2 sticks.

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The Roman numeral for the letter 9 is IX.

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2 comments:

  1. I just wanted to point out: The matchsticks are not "flat on the table" as per the instructions if two of the matchsticks are crossed to form the Roman numeral X.

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  2. The instruction is "all sticks don't have to be flat on the surface"...

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