In a flight of 600 km , an aircraft was slowed down due to bad weather. The average speed for the trip was decreased by 200 km/h & the time of flight increased by 30 minutes. Find the duration of flight.

Let the usual speed of the plane be *x* km/hr.

Reduced speed of the plane = (*x* – 200) km/hr

Time taken to reach the destination at usual speed,

Time taken to reach the destination at reduced speed,

Given, *t* _{2} – *t* _{1} = 30 min

We know that 60 minutes = 1 hour

Therefore, 30 minutes = 30/60 hour = 1/2 hour

Duration of the flight

Thus, the duration of the flight is .

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