The price of a dress is 500 yuan, 20% off, and 25% profit. The cost price of this dress is () The price of a dress is 500 yuan, 20% off, and 25% profit. The cost price of this dress is ()
Suppose the cost price is x, then the equation x (1 + 25%) = 500 * 80% can be given, and the solution is x = 320. So the cost price is 320 yuan
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