MCQOPTIONS
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| 1. |
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? |
| A. | 9 hours 9 minutes 6 sec |
| B. | 12 hours 40 minutes 6 sec |
| C. | 9 hours 50 minutes 54 sec |
| D. | 10 hours 9 minutes 6 sec |
| Answer» D. 10 hours 9 minutes 6 sec | |