You sleep from 10:30 PM to 6:45 AM. How many hours and minutes of sleep did you get?
Answer
8 hours 15 minutes
How to solve it
1
10:30 PM to midnight: 1 hour 30 minutes
2
Midnight to 6:45 AM: 6 hours 45 minutes
3
Total: 8 hours 15 minutes
Hints
Calculate time until midnight
Add time after midnight
Combine the two periods