During the new year's day, a shopping mall carried out sales promotion activities. After increasing the purchase price of a certain type of TV set by 35%, it was sold with a 10% discount and a 50 yuan toll. As a result, each TV set still made a profit of 208 yuan. How much is the purchase price of each TV set?

Suppose the purchase price of each TV set is x yuan. According to the meaning of the question: 0.9 (1 + 35%) x-50 = x + 208, the solution is: x = 1200. Answer: the purchase price of each TV set is 1200 yuan

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