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Question 40
Shrenik switched on a bulb at 2:39:40 hours and switched it off on the same day at 12:30:34 hours. For how long was the bulb in switched-on mode?
Solution
Bulb on = 2:39:40 hours
Switch off=Â 12:30:34 hours
bulb in switched-on mode=Bulb on time -Switch off time
=9 hours 50 minutes 54 seconds
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