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For every 90 minutes of sleep, a person has one dream stage. Rachel went to bed at 10:00 P.M. and woke up at 5:00 A.M. How many dream stages did she likely have?
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For every 90 minutes of sleep, a person has one dream stage. Rachel went to bed at 10:00 P.M. and woke up at 5:00 A.M. How many dream stages did she likely have?

User Adam Wagner
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2 Answers

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Rachel had 8 hours of sleep and 4 1/3 dreams.
User Sadashiv
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10 p.m. to 5 a.m. = 7 hrs = (7 * 60) = 420 minutes

420/90 = 4.67.....she had 4.67 dream stages
User Apneadiving
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