Where did the dollar go?

"1 yuan food" refers to the low-cost food at about 1 yuan. With the development of the times, they have rarely appeared in stores and supermarkets, and gradually faded out of the sight of consumers.

With the arrival of autumn, the previous scorching heat has increased the demand for beverages, popsicles and ice cream, and many outdoor workers are finding that the "1 yuan" food used to cool down is now becoming less and less common. The reporter of "Workers**" also found that the commercial territory of these low-priced foods on the market is gradually shrinking, and consumers are increasingly calling for "1 yuan food".

$1 ice cream is not extinct.

"1 yuan food" refers to the low-cost food at about 1 yuan. With the development of the times, they have rarely appeared in stores and supermarkets, and gradually faded out of the sight of consumers.

Recently, ** ice cream has caused heated discussions on the Internet. Through on-the-spot visits, the reporter found that although the overall proportion of low-priced ice cream is not large, low-priced popsicles and ice cream of a few dimes and about 1 yuan are still sold in some shops and are not extinct. Some family-packed ice creams are only sold for more than 1 yuan each, and some are less than 1 yuan, such as 20-pack Yili pudding that is sold for less than 20 yuan in supermarkets.

Xiao Chu, who lives in Beijing's Changping District, told reporters that popsicles and ice cream for about 1 yuan are still easy to buy in community stores, but they are not easy on the street, and it is even more difficult to buy them in large shopping malls. "The weather is hot, and it is just necessary to eat a popsicle to cool down, but it is still very distressing to eat an ice cream that costs more than ten yuan a piece. ”

Through the visit, the reporter found that ice cream below 5 yuan on the market has rarely appeared, and it is difficult to buy it in many stores. Ms. Han, who likes to eat ice cream, told reporters: "Ice cream is no longer under 5 yuan.

This product is now more segmented, low-fat and healthy, and less 'friendly'. ”

1 yuan mineral water is also becoming more and more "rare". Zhao He, who needs to walk to and from work every day, told reporters: "It is very inconvenient to commute with water, and it is not guaranteed to be cold.

If you drink 3 bottles of mineral water a day, the unit price of 3 yuan is close to 10 yuan. Now Zhao He likes to buy Binglu, a mineral water that retails **1 yuan, but Zhao He said that it is becoming more and more difficult to buy such a low-cost mineral water brand.

Of course, this algorithm is wrong.

Reason: (1) Three Xiucai lived in an inn, and the result was 10 yuan per person, a total of 10 3 = 30 yuan.

2) Each person returned 1 yuan, that is, 9 yuan was spent per person, and the three people spent a total of 27 yuan. Of the 27 yuan, the boss left 25 yuan, and Xiao Er left 2 yuan privately.

3) Add the 3 yuan returned, and the result is exactly 30 yuan.

Conclusion: This question confuses people mainly because it separates the 2 yuan from the 27 yuan, and the algorithm of the original question mistakenly believes that the 2 yuan left by Xiao Er is not included in the 27 yuan, so there is an error result of 1 yuan less; In fact, the 2 yuan left without permission was included in the 27 yuan, plus the 3 yuan returned, and the result was exactly 30 yuan.

Guest pays: 3x9=27

The hotel gets: 25 + 2 = 27

Balance. If you get 30, 3x9 = 27, the 27 yuan goes to the innkeeper and the clerk, of which 25 goes to the boss, 2 yuan goes to the clerk, and the remaining 3 yuan is returned to 3 guests, so 27 + 3 = 30