Deep sleep | 15 |
Dreaming | 15 |
Light sleep | 5 |
Extremely light sleep | 30 |
Awake | 35 |
A) 3.5 hours
B) 2.5 hours
C) 4.5 hours
D) 4 hours
Correct Answer: D
Solution :
Time from 10 pm to 6 am = 8 hours \[\therefore \]Required time\[(15+35)%\]of 8 hours \[=\left( \frac{8\times 50}{100} \right)\]hours = hoursYou need to login to perform this action.
You will be redirected in
3 sec