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Between 10pm to 6am, a fitness band records the following data. Refer the below data table and answer the following Question.
How long was the user in Deep Sleep or was Awake?
Total time between 10 pm to 6 am = 8 hours
% time spent in deep sleep and in awake = 15 + 35 = 50%
=> Time spent on dreaming or extremely sleeping = $$\frac{50}{100} \times 8$$
= $$\frac{8}{2} = 4$$ hours
=> Ans - (D)
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