Fortune Telling Collection - Free divination - 60 puzzles

60 puzzles

Take out 1 copper coins from the first wallet, 2 copper coins from the second wallet, 3 copper coins from the third wallet, and so on. Weigh the copper plate on the balance. The weighed mass is a few grams less than 550 grams, and each money bag corresponding to the number of grams contains nine grams of copper plates.