PeterCBWang

If the 29th  days will be 50% of the bottle, 30th day will be full (50% x 2 = 100%).
2 w9 u5 W. r# U% S6 C8 Ttvb now,tvbnow,bttvbAnswer is 29 days!
1 ^/ b. A. [: J4 j$ E; c* W' vplz answer