Question

2元一瓶，四个瓶盖换一瓶，两个空瓶换一瓶，问十元钱，能喝几瓶

Answer 1

10块买5瓶，喝完剩5空瓶5瓶盖。4瓶盖换一瓶，喝完剩6空瓶两瓶盖。6空瓶换3瓶，喝完剩3空瓶5瓶盖。4瓶盖换一瓶，喝完剩4空瓶2瓶盖。4空瓶换2瓶，喝完剩2空瓶4瓶盖。2空瓶4瓶盖换2瓶，喝完剩2空瓶2瓶盖。2空瓶换一瓶，喝完剩1空瓶3瓶盖。再找老板借一瓶，喝完剩下2空瓶4瓶盖，还老板两空瓶，剩4瓶盖。4瓶盖再换一瓶，喝完剩下1空瓶1瓶盖。然后再借一瓶，喝完剩2空瓶2瓶盖，还老板两空瓶，最后剩2瓶盖，换不了啦

Answer 2

then endless days of lotus Bi

Answer 3

15

Answer 4

10平

Answer 5

15