A shopping mall is engaged in seasonal promotion activities. If each down jacket is sold at 50% off the marked price, it can earn 50 yuan. If it is sold at 60% off the marked price, it can earn 80 yuan. What are the marked price and cost price of each down jacket?

Set the selling price to X,
X * 0.5-50 = x * 0.6-80 solution x = 300 yuan
The cost price is 300 * 0.5-50 = 200 yuan

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