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Chapter 9: Q92. (page 535)

HEALTH About 20%the time you sleep is spent in rapid eye movement (REM), which is associated with dreaming. If an adult sleeps 7for 8hours, how much time is spent in REM sleep?

Short Answer

Expert verified

An adult spent 1.4to1.6hours time in REM sleep.

Step by step solution

01

Step 1. Find the time spent in REM.

Time spent in REM when the person sleeps for 7 hours is

20%×7=0.20×7=1.4hours

02

Step 2. Find the time spent in REM.

Time spent in REM when the person sleeps for 8 hours is

20%×8=0.20×8=1.6hours

03

Step 3. Write a conclusion.

For a person who sleeps for 7 to 8 hours, the time spent in REM is between 1.4 to 1.6 hours, both inclusive.

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