MCQOPTIONS
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| 1. |
Shiva switched on a bulb at 1 ∶ 37 ∶ 39 hours and switched it off on the same day at 11 ∶ 28 ∶ 32 hours. For how long was the bulb in switched-on mode? |
| A. | 10 hours 09 mins 54 secs |
| B. | 9 hours 09 mins 06 secs |
| C. | 9 hours 50 mins 53 secs |
| D. | 12 hours 40 mins 07 secs |
| Answer» D. 12 hours 40 mins 07 secs | |