Problem of the Week

I hope everyone is having a good start to their Augusts! Here's the first Problem of the Week of the month. Take a look!

And, like always, you can find the solution after the break.




Interesting, right? Did you use another strategy to find the solution? What did you think of my method? Let us know in the comments, and if you haven't seen them yet, check out the rest of our Problems of the Week.