IEEE Weekly Puzzle

24 February 2014 Comments Off on IEEE Weekly Puzzle

#13 – Five-Digit Numbers

How many five-digit numbers can you formulate, with the condition that two identical digits may not appear in adjacent places?
The Prize for This Question: Rubik’s 3×3 Cube

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This question was prepared by Emrehan Halıcı, president of the Turkey Intelligence Foundation, for Bilkent IEEE.