Ans: 39 bottles.
Working : $20 -> 20 fb( full bottle)
20fb -> 20 eb ( empty bottle) after drink it
20eb -> 10fb
10fb -> 10 eb after drink it
10eb -> 5fb
5fb -> 5eb after drink it
5eb -> 2fb + 1eb
2fb + 1eb -> 3eb after drink it
3eb -> 1fb +1eb
1fb + 1eb -> 2 eb after drink it
2eb -> 1fb
1fb -> 1 eb afer drink it
SO, total is 20+10+5+2+1+1=39 bottles ^.^V Congratulate To: Jolene & Nikki!
0 comments:
Post a Comment