Question

In a flight of 600 km at the speed of the aircraft was slowed down due to the bad weather. The average speed of the trip was declared by 200 km per hour and does the time of the flight increased by 30 minutes find the average speed of the aircraft originally.

Answer 1

Answer:

600 km/hr.

Explanation:

Let the duration of the flight be x hours.

Then,600/x-600/x + (1/2)= 200

        600/x-1200/2x + 1= 200 

        x(2x + 1) = 3

        2x² + x - 3 = 0

       (2x + 3)(x - 1) = 0 

        x = 1 hr.

Then, the average speed=total distance/total time=600/1=600 km/hour