Question 1: Let the purchase price be a, the price be 1.5A, the selling price be 1.5*0.8A, and the equation be 1.2A-A=20. The purchase price is 100 yuan.

Question 2: 50% profit 10000 yuan, the price is 300 yuan. 60% sold it for 6,000 yuan, and finally made a profit of 8,200 yuan, so the last 40% made a profit of 2,200 yuan, and the price of each piece was 255 yuan. If the discount is 255 divided by 300, it should be 8.5 fold.