In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is: Choose one
A) 2
B) 3
C) 4
D) 5
E) 1
flight ==&gt; x hrs   600/x - 600/x+1/2 = 200   x(2x+1) = 3   2x2+x-3 (2 +1)= 
<gadget id="calculator"> (2 +1)</gadget>
<output>3</output>
3   2x2+x-3=0   x=1   ANSW1R 1
<result>E</result>
In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is: