Your new cell phone battery needs to be charged for 3 hours and 45 minutes before
using it. If you plug the battery into the charger at 8:20 a.m., you should wait till what
time before using it?  Choose the correct choice from the following answers.
A) 09:05 a.m.  B) 11:05 a.m.  C) 12:05 p.m.  D) 13:05 p.m.  E) 15:05 p.m.
8:20 + 3 hours = 11:20   + 0:45 minutes = 12: 05 P.m.   Answer: 12:05 p.m.   correct answer 12:05 p.m.
<result>C</result>
Your new cell phone battery needs to be charged for 3 hours and 45 minutes before
using it. If you plug the battery into the charger at 8:20 a.m., you should wait till what
time before using it?