You are at the end. Answer this question to win the last key. Captain monacle has found 200 pieces of treasure. There were 58 gold coins, 46 silver coins, 42 copper coins and 30 diamonds. The rest of the treasure was rubies. How many rubies were there?


Created with an image by Maksym Yemelyanov - "Open treasure chest filled with golden coins, gold and jewelry isolated on white background."