Miss Wang sells shoes. One shoe is on sale in 45 yuan and 30 yuan. The customer bought a pair of shoes and gave a piece 100. Miss Wang had no change, so she found an adjacent shop and changed it for 100 yuan. Afterwards, the neighboring store found that the money was fake, and Miss Wang lost 100 yuan to the neighboring store. How much did Miss Wang lose? This question is not simple. How much did you lose? This problem has been tested in various groups. In a group of 100 people, only 1 person got it right in half an hour. )

Miss Xie Wang lost 130 yuan.

65,438+030 yuan is the price of shoes, and 45×2+ the customer's 40 yuan.

Pay attention to the relationship between Miss Wang and her neighbor, because the neighbor gave Miss Wang 100 yuan, and Miss Wang also gave her neighbor 100 yuan.

Note that the customer took the money paid by Miss Wang. The customer took the shoes worth 45×2=90 yuan and the 40 yuan that Miss Wang gave him.