In midsummer, 10 students went to the cold drink shop and handed over the beverage statistics they needed to the waiter: Six wanted coke, five wanted sprite, Five people want juice, three people want Coke and Sprite, two people want sprite and juice, and one person wants all three. Q: how many people have drinks and drinks? (three situations.)

In midsummer, 10 students went to the cold drink shop and handed over the beverage statistics they needed to the waiter: Six wanted coke, five wanted sprite, Five people want juice, three people want Coke and Sprite, two people want sprite and juice, and one person wants all three. Q: how many people have drinks and drinks? (three situations.)

Only one person for coke, coffee and juice, two for both coke and coffee, one for both coffee and juice, two for both coke and juice, one for all three, and three for nothing. 12-3 * 1-2-1-2-1 = 3

If you drink 12.5% of a box of drinks, there are 21 bottles left. If you drink 10%, how many bottles are left? What's the test

The total number of bottles is 21 / (1-0.125) = 24. If you drink 10%, you will drink 2.4 bottles, that is, 3 bottles, and there are 21 bottles left

If you drink 40% of a box of drinks, there are 12 bottles left. If you drink 18 bottles, how many bottles are left

12/(1-40%)=20
20-18=2

If you drink 50% of a box of drinks, there are 12 bottles left. If you drink 3 bottles, how many% of the box of drinks are you drinking

12.5 percent