All Questions
3
questions
8
votes
3
answers
1k
views
Largest sequence of adjacent numbers less than 11 such that adjacent number divides the other
Friday writes different positive whole numbers that are all less than 11 next to each other in the sand. Robinson Crusoe looks at the sequence and notices with amusement that adjacent numbers are ...
- 3,323
18
votes
7
answers
1k
views
Efficient Mowing at PSE
Your task:
Find the most efficient mowing path around the dark green bushes that mows (passes over) all of the grass (light green).
For those who cannot view the image above, there are 9 rows of 16, ...
- 19k
2
votes
2
answers
218
views
Powerful Octagon
Place different integers on the vertices of an octagon so that the sum of the integers in any two vertices joined by one of its edges is a power of 2. Do so in such a way that the largest integer used ...
- 19.3k