Question

89. An infant sleeps approximately 17 hours a day. Of those hours, how many are spent in REM?

(A) 20 percent
(B) 30 percent
(C) 50 percent
(D) 70percent
(E) 80 percent

Answer 1

An infant sleeps approximately 17 hours a day, and 50 percent of this sleep time is spent in REM sleep, which amounts to about 8.5 hours of REM sleep.

Step-by-step explanation:

An infant sleeps approximately 17 hours a day. Of those hours, how many are spent in REM sleep? Infants typically spend a significant proportion of their sleep in REM (Rapid Eye Movement) sleep compared to adults.

The correct answer to the question is (C) 50 percent. To find the amount of REM sleep, you would calculate 50 percent of the 17 hours of sleep. To do this mathematically: 0.50 × 17 hours = 8.5 hours. Therefore, an infant spends about 8.5 hours of the 17 hours of sleep in REM sleep.