Subject: mathqa
Question: a glass was filled with 10 ounces of water , and 0.05 ounce of the water evaporated each day during a 20 - day period . what percent of the original amount of water evaporated during this period ?
Option: 
A: 10 %
B: 0.02 %
C: 0.002 %
D: 2 %
Answer: A