The Time Taken by the Plane to Cover 9000 km is :
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
- 5 hours
- 8 hours
- 6 hours
- 9 hours
Answer: (4) 9 hours
Explanation:-
A plane can cover 600 km = 8 hours
Then, the Speed of a plane = 6000/8 (Speed = distance/time)
= 750 km/hr
If the speed increased by 250 km/hr
Then, the speed of a plane = 750 + 250 = 1000 km/hr
Time taken by plane to cover 9000 km = 9000/1000
= 9 hrs
Then, the time taken by plane to cover 9000 km is 9 hrs.
Hence, the answer is (4) 9 hrs.