It means: there is wine in Li Bai's pot, so every time you meet a hotel, double the wine in the pot; Every time he looks at flowers, he drinks poetry and a bucket. After three times, he finally drank all the wine in the pot. How much wine is there in Li Bai's hip flask?

In the question, the original amount of alcohol in the pot is required, and the change and final result of the wine in the pot are told-three times (times 2) quantitative reduction (weight reduction barrel) and light. To solve this problem, it is generally based on the changed results, using the reciprocal relationship of multiplication and division, addition and subtraction, and gradually reverse reduction. "When you meet the flowers in the store for three times, you will drink all the wine in the pot." It can be seen that there is a bar barrel in the flower pot in the store for three times, and a bar barrel of 1÷2 for three times, and a bar barrel of 1÷2+ 1 for two times.

[(1÷ 2+1) ÷ 2+1] ÷ 2 = 7/8 (barrel)

So, the pot hit 7/8.