Refer the below data table and answer the following Question. Deep Sleep 10 Dreaming 25 Light Sleep 10 Extremely Light Sleep 5 Awake 50 Between 10pm to 6am, a fitness band records the following data. How long was the user in Light sleep or was in Extremely light sleep ?

SSC CHSL 11 Jan 2017 Shift 2 Paper

Question : 100 of 100

Marks: +1, -0

Refer the below data table and answer the following Question.

Between 10pm to 6am, a fitness band records the following data. How long was the user in Light sleep or was in Extremely light sleep ?

Solution:

Total time between 10 pm to 6 am = 8 hours
% time spent in Light sleep or in Extremely light sleep =

10 + 5 = 15%

⇒ Time spent in Light sleep or in Extremely light sleep =

15/100×8

{3×2}/5=1.2

hours

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