Recently, I saw an interesting question, and it is said that none of the 300 people answered it correctly. The topic is very simple: a boss sells watermelons, the purchase price is 50 yuan, and the price is 70 yuan, but he receives 100 yuan of counterfeit money, and asks him how much money he has lost?
At first glance, it looks very simple, but there are various answers in the comment area, some people say that they lose 80, some people say they lose 100, and some people calculate 180, which is very noisy. This reminds me of the last time I went to the vegetable market to buy vegetables, and the boss miscalculated the account when looking for money, in fact, the reason is similar, that is, it is easy to get dizzy.
The key: Counterfeit money is a distraction, don't count it as a loss