An aeroplane covers a certain distance at a speed of 240

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An aeroplane covers a certain distance at a speed of 240 km hour in 5 hours. To cover the
same distance in 1 2 hours, it must
3
travel at a speed of :

1. 300 km./hr.
2. 360 km./hr.
3. 600 km./hr.
4. 720 km./hr.

Correct Option: D

Let the required speed is x km/hr

Then, 240 × 5 =	5	× x
	3

∴ x = 720 km/hr.