Math puzzle
I wonder did anyone actually thought about the puzzle that Mr Lo talked about in the assembly, but I did, and I am glad to say that I solved it rather quickly. I knew the answer before I finished climbing the stairs to the fifth floor.
The puzzle is this: the ten numbers, 0-9, are put into three groups. Group A has 1, 4, 7; B has 2 and 5; C has 3, 6, 8, 0. The question is where 9 is put. Mr Lo said it’s not about calculations.
My solution is like this: In group A, the numbers are formed by straight lines. The numbers in group B are formed partly by straight lines and partly by a curve. Those in group C are entirely in curves. Therefore, 9 can actually be in group B or C, depending on how you write it.
I didn’t find Mr Lo for a confirmation or the prize. I just forgot it and I don’t think I would really find him if I remembered to.
- School | Time: 4:42 pm (UTC+8)
Wow, I thought you would never write anything here again! And two posts in 4 days. That’s really nice to read your blog entries again.
Comment by Ahern — February 13, 2007 @ 11:34 am