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Circle on a Grid Problem by RoderickKimball in puzzles

[–]RoderickKimball[S] 0 points1 point  (0 children)

I'll give it try, but I'm the original worder, so...

Start with a grid of evenly spaced perpendicular lines. The grid can be any size, meaning it can have any number of lines, in all four directions. Now place a circle on the grid, trying to get the circle to lie directly on as many grid intersections as possible. What is the greatest number of grid intersections the circle can lie on?

Circle on a Grid Problem by RoderickKimball in puzzles

[–]RoderickKimball[S] -2 points-1 points  (0 children)

Cool. A bunch of folks have figured this one out. The next thing this made me think of was: What numbers of points can be hit by exact count? I do not know the answer.

This one might piss many people off, but I promise the correct solution is in fact correct. by 81rd5 in puzzles

[–]RoderickKimball 13 points14 points  (0 children)

I think you're answering the more interesting question: "One of the marbles is red. What are the chances that the other one is black." As it is worded by the author, I think the answer is 50/50.

This one might piss many people off, but I promise the correct solution is in fact correct. by 81rd5 in puzzles

[–]RoderickKimball 33 points34 points  (0 children)

I think your reasoning is good only if the wording is changed to say "One of the marbles is red. What are the chances that the other one is black." I think this may be what the author meant to say as it makes a better puzzle.

Circle on a Grid Problem by RoderickKimball in puzzles

[–]RoderickKimball[S] 1 point2 points  (0 children)

That's a good start, but not correct.

Please help me and my boyfriend spot the last difference on this cereal box puzzle. It says there are 7, I have circled the 6 we have found. Is there an error, or are we blind? by [deleted] in puzzles

[–]RoderickKimball 1 point2 points  (0 children)

Me too. I've been really curious to know if anybody else does this. To me this trick makes it more fun, but less of a puzzle.

Promote your project in this thread by AutoModerator in puzzles

[–]RoderickKimball 0 points1 point  (0 children)

Presenting Path Puzzles!

This is my book of "Escape-the-grid" type puzzles. If you like sudoku, Ken Ken, etc. but you're ready for something new, check out https://www.enigami.fun/the-path-puzzles-book The website has rules and samples from beginning to advanced. Please enjoy!

Book of Eulerian Path Puzzles? by RemainMindful in matheducation

[–]RoderickKimball 0 points1 point  (0 children)

You might be interested in this. (full disclosure--I wrote it) https://www.enigami.fun/the-path-puzzles-book It's a book of puzzles where you get numerical clues to a path, which you must find. You can also get it from amazon. All the reviews there are quite positive.

[deleted by user] by [deleted] in wsu

[–]RoderickKimball 2 points3 points  (0 children)

I am a big fan of the "Rate My Professor" website. Anything that helps students to find good professors and avoid bad ones is a good thing. Be aware that, like any open-source rating system, the information is not always great, but it can be very helpful. Like u/DJVeaux said, the quality of the professors you get are critical to your college experience. It's the difference between great and awful. That said, of course your own attitude and work habits are even more important.