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Logic puzzle 23.01.14

10-digit Number Puzzle

The Puzzle:

Find a 10-digit number where the first digit is how many zeros in the number, the second digit is how many 1s in the number etc. until the tenth digit which is how many 9s in the number.

Post your answers on this blog entry and I will give you the solution next week in class. Whoever gets the answer or is closest will receive a sticker!

Good luck! – Miss Land.



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  1. Oscar Hamilton Reply

    I’ll do it tommorow – it’s nearlly 19:00!

  2. Oscar Hamilton Reply

    OK, I’m doing it now!

  3. Oscar Hamilton Reply

    OK, I’m doing it now! 9,000,000,000 is my answer.

  4. Oscar Hamilton Reply

    My Mum helped me.

  5. Oscar Hamilton Reply

    No, 8100000000!

    • class6 Reply

      Almost Oscar! Well done for giving this incredibly hard challenge a go! I’ll talk you through it on Monday – Miss Land.

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