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Shrinath switched on a bulb at 1 : 44 : 41 hours and switched it off on the same day at 11 : 35 : 35 hours. For how long was the bulb in switched-on mode? 

Shrinath switched on a bulb at 1 : 44 : 41 hours and switched it off on the same day at 11 : 35 : 35 hours. For how long was the bulb in switched-on mode?  Correct Answer 9 hours 50 minutes 54 seconds

According to the question

Shrinath switched on a bulb at 1 : 44 : 41

Shrinath switched off the bulb at 11 : 35 : 35

⇒ The time when bulb is in switched-on mode = 11 : 35 : 35 – 1 : 44 : 41 = 9 : 50 : 54

∴ Required time = 9 hours 50 minutes 54 seconds

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