Subcategories

• Week 1

  Area Consequences; Box Calculations; Counting Numbers; Seating Probability

  Day 1 Day 2 Day 3 Day 4
  20
  Topics
  47
  Posts

  P

  First of all, I want to apologize for being so late, and also let you know I'm new at this, so I'm probably wrong. But I'll try my best to explain. I think he means that you can rotate the hexagon and shift the positions of A and B, but it won't matter because this shape is closed. But if you looked at a line of chairs, and for example, A sat on 1 end and B sat on the other, they wouldn't be sitting next to each other, well, because its a line. Again, I don't have any experience teaching math compared to Po shen loh, but I hope this helped! 🙂

  -pinkunicorn4000
• Week 2

  Magic Square; Geometric Scaling; Least Common Multiple; Counting Triangles

  Day 5 Day 6 Day 7 Day 8
  29
  Topics
  83
  Posts

  P

  In the video, Prof. Loh explains how to find the middle number (9) by using algebra. But apparently, my brain wasn't satisfied with that method, so I accidentally possibly came up with a shortcut... maybe. Here's how I did it: I simply found the median of the 9 numbers, which was also 9. It actually kinda makes sense because in previous problems, the middle number was always the median of the numbers given. But I also know that there are often weird coincidences in math, (when you get the right answer the wrong way) so that's why I'm asking this wonderful math community 🙂

• Week 3

  Train Times, Circling the Earth, Election Prediction, Multiplying Switches

  Day 9 Day 10 Day 11 Day 12
  22
  Topics
  68
  Posts

  D

  @geniusraccoon Hmmm I think its because the three gears need to be in a triangle to move, because the gears wont work one vs one on a line, you will be missing the first and the third if u use a line

• Week 4

  Polygon Angles, Telescoping Sum, Beehive Paths, Square Remainders

  Day 13 Day 14 Day 15 Day 16
  15
  Topics
  38
  Posts

  F

  The question is:Screen Shot 2022-08-23 at 4.27.44 PM.png

  and what I thought was, because it's a 3x3 rectangle, to get from A to B, you'd need to go right 3 times and go down 3 times (regardless of the order). if the third row wasn't missing a segment, then the answer would be 6 choose 3 which is 20. but since there is a missing segment then my fourth move (there are six moves in total) couldn't be a go right but instead a go down. and so the number of paths would decrease by half, which is 10.

  and yet clearly, this is not the case. could anyone explain why my solution failed? thanks!!!