In a flight of 600 km an aircraft was slowed down due to bad weather Its average speed for the trip ...........

Quantitative Aptitude (CDS) Time & distance

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

1 hour

2 hour

3 hour

4 hour

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Explanation:

Let the duration of the flight be x hours.
then 600/x -600/(x+1/2)=200

	600	-	1200	= 200
	x		2x + 1

x(2x + 1) = 3

2x² + x - 3 = 0

(2x + 3)(x - 1) = 0

x = 1 hr. [neglecting the -ve value of x]

By: Munesh Kumari

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In a flight of 600 km an aircraft was slowed down due to bad weather Its average speed for the trip ...........

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Explanation:

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