a plane left 30 minutes later than the scheduled time and in order to reach its destination 15 km away in time it has to increase the speed by
250 kilometre per hour from its usual speed find its usual speed
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Answer:
Let the usual speed of the plane be x km/hr.
Increased speed of the plane = (x + 250) km/hr
Time taken to reach the destination at usual speed,
Thus , the usual speed of the plane is 750 km/hr .
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