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A very simple mathematical problem A businessman spent 8 yuan to buy a commodity. After a period of time, he sold it with 9 yuan. After a period of time, he bought it back with 10 yuan. Finally, he thought the commodity was bad, so he sold it with 11 yuan. Excuse me: did the businessman make or lose in this business? If he made, how much did he make? If he lost, how much did he lose?
The first question was: a businessman bought a chicken for 8 yuan, then sold it for 9 yuan. After a while, he bought it back for 10 yuan and sold it for 11 yuan
No matter how to change the topic, the businessman did not make or lose money in the end
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