A bottle of water costs one yuan, three empty bottles can be exchanged for one bottle, and ten yuan

1.First of all, 10 yuan to buy 10 bottles of water, 10 people to drink;

2.After drinking, take 9 bottles for 3 bottles of water, and the remaining 3 people drink, and there is 1 empty bottle left;

3. After drinking, exchange these 3 bottles for 1 bottle of water, and drink the remaining 1 person;

4. After drinking, there are 2 empty bottles in total, then borrow 1 bottle of water from the boss and give it to the last person to drink, after drinking, take 3 empty bottles for 1 bottle of water and return it to the boss!

So all 15 people have water to drink.

Three empty bottles for one bottle is equivalent to three empty bottles for one empty bottle and one water. So two empty bottles are equivalent to one water. This is understood first.

How to exchange two empty bottles for one bottle of water: take two empty bottles, tell the boss to change one bottle of water, owe one empty bottle, and give him the empty bottle after drinking.

So at the beginning, you can buy ten bottles of water for ten dollars, and with the above method, you can exchange it for five more bottles. Fifteen bottles in total.

I encountered such a problem when I participated in the math competition group in elementary school, the algorithm should be 10 + 5 = 15, the analysis is as follows: first 10 yuan to buy 10 bottles of mineral water, there is no doubt about this, and then there is the problem of using 10 empty bottles to exchange for several mineral water: every 3 can be exchanged for a bottle, and this bottle of water itself will produce an empty bottle, 3-1 = 2, that is to say, for every 2 empty bottles given out, you can drink a bottle of mineral water for free (is the kind that drinks the water, there is no bottle) so 10 divided by 2 equals 5, 10 + 5 = 15.

Three empty bottles for a bottle of soda, so the ** of each bottle of soda (without bottles) is 2 3 yuan, divide 10 by 2 3, get 15, this is the algorithm to quickly know the answer, see the specific change.

Ten yuan to buy 10 bottles, get 10 empty bottles, nine for 3 bottles, get 4 empty bottles, three empty bottles for 1 bottle, the remaining two empty bottles, ask the boss to borrow 1 bottle of water, and get an empty bottle after use, plus the original two empty bottles to get three empty bottles for a bottle of water to return to the boss, a total of 15 bottles.

At first, I bought 10 bottles, then I changed 3 bottles of water, I got 4 empty bottles, I changed 1 bottle, I got 2 empty bottles, and I borrowed 1 more bottle, and then I changed 1 bottle, and I returned the empty bottle to the person who borrowed it.

5 bottles, 12 yuan can buy 4 bottles of water 3 empty bottles for 1 bottle of water, plus an empty bottle left in Lu Xu, there are 2 empty bottles left, and there is enough to replace it if it is not vertical Therefore, buy up to 5 bottles of water.

According to the title, the value of water in 1 bottle of water is the same as the value of 2 empty bottles, and it is known that 1 bottle of water is equal to 3 yuan, and the value of each empty bottle is 1 yuan, and the value of water is 2 yuan, so that 12 yuan can drink 12 2 = 6 bottles of water at most. Code Reputation.

A bottle of water is water + empty bottle residual resistance, three empty bottles can be counted for a bottle of water, water = 2 empty bottles.

A bottle of water costs 3 yuan, which is 3 yuan for 3 empty bottles. From this, it can be seen that 1 empty bottle is 1 yuan, and water is 2 yuan.

12 yuan can buy up to 6 bottles of water (empty bottles must be returned to the potato ruined boss).

You can buy up to 5 bottles of water for 12 yuan.

78 2 = 39 bottles, give: 39 3 = 13 bottles, 52 3 = 14 bottles, 14 3 = 4 bottles and 2 empty bottles, 6 3 = 2 bottles, the sailor rolls so you can buy a total of 72 bottles.

You can drink up to 19 bottles of water.

Analysis: 10 yuan to buy back 10 bottles of water; 10 empty bottles for 5 bottles of water. After drinking 5 bottles of water, replace it with 2 bottles of water, leaving one empty bottle; After drinking 2 bottles of water, you can also exchange it for a bottle of water, plus the remaining empty bottle, you can change it for another bottle of water.

The total amount of water that can be drunk is: 10 5 2 1 1 19 bottles of water.

2 yuan for a bottle of water, 10 yuan can buy 5 bottles, 2 bottle caps for a bottle of water, you can exchange 2 bottles.

4 empty bottles for 1 bottle of water.

The remaining 1 cap and the cap of the empty bottle can also be replaced with 1 bottle.

The remaining 3 empty bottles + the empty bottles that were replaced later, and then 1 bottle.

So 10 yuan can buy a total of 10 bottles of water.

A total of 10 yuan, 2 yuan per bottle of water.

A: 10 can buy a total of 5 bottles of water.

This is because it says how many bottles of water you buy, not how many bottles of water you can get.

If you change more than that.

10 yuan to buy 5 bottles of water, 4 bottle caps for 2 bottles of water, 4 empty bottles for 1 bottle of water, so 10 yuan for a total of 8 bottles of water.

12 yuan can buy 4 bottles of water.

3 empty bottles for 1 bottle of water, plus the remaining one empty bottle, leaving 2 empty bottles, not enough to change.

So, buy up to 5 bottles of water.

Solution: (12 3) Ten (4 3) Ten 1

4 x1 and 1 3x1

6 and 1 3 (bottles).

Answer: 12 yuan can buy up to 6 and 1 3 bottles of water (including empty bottles for water).

2 yuan for a bottle of water, 3 empty bottles for a bottle of seeping, 30 yuan can drink how many bottles of water?

It can be counted layer by layer.

30 2 = 15 bottles, 15 3 = 5

After drinking 5 bottles, borrow a bottle, exchange two bottles of water, and return the bottle to Cong Kuanxi after drinking, leaving a bottle of Qiaowangzi.

A total of 15 + 5 + 2 + 1 = 23 bottles.

n+（n\2)+(n\2\2).Divide until 1 or 0, if it is 1, borrow a bottle from him, drink it and add the bottle that you had before, and the two cave bottles will be clear, and it will offset the bottle you just borrowed. Seriously, there is no right answer to your quivering question.

Looks like I've seen it on the IQ question)

Buy 20 bottles first, come out with 20 empty bottles, change 10 bottles, come out with 10 empty bottles, change 5 bottles, come out with 5 empty bottles, change 2 bottles (one empty bottle left), come out with 2 empty bottles, change 1 bottle, come out with an empty bottle, add an empty bottle just now, and change the last bottle.

Summary. The remaining 3 empty bottles can be exchanged for 1 bottle of soda, after drinking, exchange for 1 more bottle, after drinking, you can return it, and you can get it. The maximum number of bottles to drink soda is: 21 + 10 + 5 + 3 + 1 + 1 + = 41 (bottles).

1 yuan for a bottle of soda, after drinking two empty bottles for a bottle of 21 yuan can drink a few bottles.

Hello dear, is answering this question for you, please be patient and wait.

Hello dear, is answering this question for you, please be patient and wait.

Problem solving: 21 yuan can buy 21 bottles of soda. 20 empty bottles can be exchanged for soda for the nuclear brigade: 20 2 = 10 (bottles) 10 repentant empty bottles can be exchanged for soda is: 10 2 = 5 (bottles).

After drinking 5 bottles of soda, you will get 5 empty bottles, plus the previous 1 empty bottle, the soda that can be replaced with 6 empty bottles is: 6 2 = 3 (bottles).

You can drink a few bottles in total.

You can drink a few bottles in total.

The remaining 3 empty bottles can be exchanged for 1 bottle of soda, and after drinking, exchange for 1 bottle of Lu Jian, and after drinking, you can return it, that is, you can get it back. The maximum number of bottles of soda is: 21 + 10 + 5 + 3 + 1 + 1 + = 41 (bottle ridge).