###Human: Flora has been experiencing frequent fractures. Dr. Juan has asked her to strengthen her bones by drinking 105 gallons of milk within 3 weeks. Flora thinks that drinking 3 gallons of milk daily will be enough, but her brother says she'll still need to drink more. To fulfill Dr. Juan’s requirement, how many more gallons must Flora drink daily?, ### Assistant: 3 weeks translate to 3 * 7 days = 21 days.
To meet Dr. Juan’s recommendation would mean drinking 105/21 = 5 gallons daily.
This means that Flora must drink 5 -3 = 2 more gallons daily. 
 So the answer is :  2