Donna must practice her violin for 30 minutes each day. If she starts practicing at 7:50 PM, when should she stop?
A) 8:30 PM
B) 8:20 PM (Correct Answer)
C) 8:15 PM
Explanation:
The student is being asked to determine what time it would be 30 minutes after 7:50 PM. The student could first add 10 minutes to 7:50 to reach 8:00. Then the remaining 20 minutes would advance the time to 8:20 PM. Thus, Donna would finish practicing at 8:20 PM.
Related Common Core State Standard: Measurement & Data: 3.MD.1
