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Questions and Answers
If Min-jun's average sleep time is 7 hours and 30 minutes, what time does he typically wake up if he goes to sleep at 11:43 PM?
If Min-jun's average sleep time is 7 hours and 30 minutes, what time does he typically wake up if he goes to sleep at 11:43 PM?
- 7:13 AM
- 8:13 AM
- 7:43 AM
- 6:13 AM (correct)
How many minutes does Min-jun typically sleep when he goes to bed at 11:43 PM?
How many minutes does Min-jun typically sleep when he goes to bed at 11:43 PM?
- 390 minutes
- 420 minutes
- 450 minutes (correct)
- 480 minutes
What is the total time Min-jun will spend sleeping starting from 11:43 PM?
What is the total time Min-jun will spend sleeping starting from 11:43 PM?
- 7 hours and 30 minutes (correct)
- 7 hours and 15 minutes
- 8 hours and 15 minutes
- 6 hours and 45 minutes
If Min-jun sleeps for 7 hours and 30 minutes, how many hours does he have left until noon if he goes to sleep at 11:43 PM?
If Min-jun sleeps for 7 hours and 30 minutes, how many hours does he have left until noon if he goes to sleep at 11:43 PM?
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What is the latest time Min-jun can go to bed to still wake up by 6:00 AM if he needs 7 hours and 30 minutes of sleep?
What is the latest time Min-jun can go to bed to still wake up by 6:00 AM if he needs 7 hours and 30 minutes of sleep?
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Study Notes
Min-jun's Sleep Schedule
- Min-jun's average sleep duration: 7 hours and 30 minutes (450 minutes).
- Wake-up time if bedtime is 11:43 PM: 7:13 AM (11:43 PM + 7 hours 30 minutes).
- Total sleep time from 11:43 PM: 7 hours and 30 minutes.
- Hours remaining until noon after 7 hours 30 minutes sleep from 11:43 PM: 4 hours and 7 minutes (12:00 PM - 7:13 AM = 4 hours and 47 minutes).
- Latest bedtime for waking up by 6:00 AM with 7 hours and 30 minutes sleep: 10:30 PM (6:00 AM - 7 hours 30 minutes = 10:30 PM).
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