Question

In a flight of 600 km, the speed of the aircraft was slowed down due to bad weather. The average speed of the trip was decreased by 200 km/hr and thus the time of flight increased by 30 minutes. Find the average speed of the aircraft originally.​

Answer 1

Step-by-step explanation:

Solution(By Kaif nezami team)

LetthedurationoftheflightbexhoursThen,600x−600x+(1/2)=200⇒600x−12002x+1=200⇒x(2x+1)=3⇒2x2+x−3=0⇒(2x+3)(x−1)=0⇒x=1hour

Answer 2

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