Today's key (June 7th) has been won.

Math skillz activate! deltaSEV-FOUR was the first to send us the correct code for today, 11 keys. He successfully answered the question: If Freddy has 14 refined, 16 reclaimed, 42 scrap and 73 scout weapons, how many keys (rounded to the nearest key) can he buy at a price of 2.55 refined metals per key?

The best way to answer this question is to go in reverse. 73 scout weapons is 36.5 scrap, add that to 42 and he has 78.5 scrap total. Divide that by 3 and its about 26 reclaimed plus the original 16 reclaimed and he now has 42 reclaimed total. Divide that by 3 and its about 14 refined, added to his original 14 refined and he now has 28 refined total. Divide 28 by 2.55 and you get 11 keys.

Congratulations to deltaSEV-FOUR for winning today. Good luck to everyone for tomorrow's free key (details if you're just joining us are here).

Let's see how good your math is

For today's key, the code is the correct answer to the following:

If Freddy has 14 refined, 16 reclaimed, 42 scrap and 73 scout weapons, how many keys (rounded to the nearest key) can he buy at a price of 2.55 refined metals per key?

Email the correct answer and your steam id here.

Update: today's key has been won, thanks for all your responses.