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A plane can cover 6000 km in 8 hours. If the speed is increased by 250 kmph, then the time taken by the plane to cover 9000 km is
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- 8 hours
- 6 hours
- 5 hours
- 9 hours
Correct Option: D
| Speed of plane = | |
| Time |
| = | = 750 kmph | |
| 8 |
New speed = (750 + 250) kmph = 1000 kmph
| ∴ Required time = | = 9 hours | |
| 1000 |
