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1. |
Harish switched on a bulb at 01∶23∶44 hours and switched it off on the same day at 11∶14∶38 hours. For how long was the bulb in switched-on mode? |
A. | 12 hours 40 mins 06 secs |
B. | 10 hours 09 mins 06 secs |
C. | 09 hours 09 mins 06 secs |
D. | 09 hours 50 mins 54 secs |
Answer» E. | |