1. When you buy 1000t soybean contract for 2000 yuan on the same day, the profit is (2030-2000)* 1000=30000 yuan. When the contract of selling 2000 tons of soybeans at 2020 yuan is settled at 2030 yuan per ton, the profit is (2020-2030)*2000= -20000 yuan. So the total profit and loss of that day was 30000-20000= 10000 yuan.

2. The next day, when the contract for selling 3,000 tons of soybeans at 2,025 yuan is settled at 2,035 yuan per ton, the profit is (2025-2035) * 3,000 =-30,000 yuan. The purchase price of the open mung bean contract is unknown, so it is impossible to calculate the profit and loss of the mung bean contract on that day.

On the third day, it is the time to really see the profit and loss. 10 lot of soybeans made a profit by paying the bill (2030-2000) *1000 = 30,000 yuan, 20 lots of soybeans made a profit by selling orders (2020-2030) * 2000 =-20,000 yuan, and 30 lots of soybeans made a profit by selling orders (2025-2000) If the second question is 28 10 yuan, then the profit and loss is (28 10-2820)*2000=-20000 yuan.