Was trying to work out the math for an hr... but was thrown by the uphill angle thing. Took an educated guesstimate from there and got it right.
If you sit on the site long enough, if you go to click an answer, it may not do anything. Had to refresh and I enter my email address to get back in.
This was definitely a much harder question than I thought they would’ve asked. If this is open for a week, then the answer is definitely going to leak. If you don’t know it for sure, then your better off waiting until it is leaked.