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  • 枫下沙龙 / 休闲娱乐 / Brain Exercise: Divide and Conquer -guest:; 2001-1-30 {193} (#23377@0)
    A ten-litre container is filled up with oil. You are given a seven-litre container and three-litre container (both empty). Can you divide the ten litres of oil into, precisely, two five-litres?
    • my asnwer -wjiang(wjiang); 2001-1-30 {331} (#23380@0)
      10 LTR 7 LTR 3 LTR
      ---------------------------------
      7 0 3
      1 3 3
      1 6 3
      1 7 2
      8 0 2
      8 2 0
      5 2 3
      ================================
      5 5 0
      • Another answer -diao_david(David Diao); 2001-2-1 {61} (#23812@0)
        3 7 0
        3 4 3
        6 4 0
        6 1 3
        9 1 0
        9 0 1
        2 7 1
        2 5 3
        5 5 0
    • mine -guest:guest; 2001-2-2 {95} (#24006@0)
      10ltr 7ltr 3ltr

      10 0 0
      7 0 3
      7 3 0
      4 3 3
      4 6 0
      1 6 3
      1 7 2
      8 0 2
      8 2 0
      5 2 3
      5 5 0
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