MCQOPTIONS
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| 1. |
Sitesh drove 12 hours at a speed of @ 75 km/hr. At present, how long should he drive at a speed of @ 90 km/hr so that the overall average speed will be 81 km/hr? |
| A. | 9 |
| B. | 7.5 |
| C. | 8 |
| D. | 6 |
| Answer» D. 6 | |