An empty bottle with three glasses of water weighs 500g, and an empty bottle with five glasses of water weighs 800g

An empty bottle with three glasses of water weighs 500g, and an empty bottle with five glasses of water weighs 800g

m1+3m2=500
m1+5m2=800
The solution is: M1 = 50, M2 = 150
The weight of an empty bottle and a glass of water are 50g and 150g respectively

Today, 32 people buy 24 bottles of mineral water and exchange one bottle for every four empty bottles. They ask if all 32 people can drink mineral water?

Yes, first of all, change 24 bottles for 6 bottles of water. After 6 bottles of water are drunk, change 4 bottles for 1 bottle of water. After 1 bottle of water is drunk, there are still 3 bottles left. Ask the boss to borrow another bottle, collect enough 4 bottles, and then change 1 bottle of water. After drinking, return the bottle to him
32 people together

: a person has 15 empty mineral water bottles. Assuming that four bottles can be exchanged for one bottle of mineral water, how many bottles of water can he drink without paying
Thank you

12 empty bottles for 3 bottles of water, drink left the original 3 empty bottles plus just finished 3, a total of 6 empty bottles
Use four empty bottles for a bottle of water. After drinking, there are two original bottles and one just finished. There are three empty bottles in total. If it is not enough to change a bottle of water, you can borrow a bottle of water from your boss. After drinking, use the four empty bottles for a bottle of water and return it to your boss
That is 3 + 1 + 1 = 5 bottles

A box of mineral water wholesale price 16 yuan, 8 bottles, a box of a bottle price 3 yuan, if buy 3 boxes of 2 bottles at least how much yuan

3*8=24
If not wholesale, a box is 24 yuan
24*3=72
Three cases is 72 yuan
2*3=6
2 bottles is 6 yuan
72 + 6 = 78 yuan
The total is 78 yuan
If it is wholesale:
16/8=2
Wholesale 2 yuan per bottle
16 * 3 = 48 yuan
Wholesale 3 cases for 48 yuan
2*2=4
Wholesale 2 bottles for 4 yuan
48 + 4 = 52 yuan
Ideal state