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  1. S

    Australian Maths Competition 2012 Thoughts

    For the Terryfying list question, the list is built as so: [0][1,2][1,2,3,2,3,4][1,2,3,2,3,4,3,4,5]... This shows that nth list ends in 3n-1. So we locate where 2012 is, which is between 36(=729) and 37(=2178) As the rules suggest, the 1st - 729th numbers is repeated twice, and each...
  2. S

    Australian Maths Competition 2012 Thoughts

    So what was the answer for the last few? I got 6 for 29, although apparently it was 2. Any ideas?
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