An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cov

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

Options:

A . 300 kmph

B . 360 kmph

C . 600 kmph

D . 720 kmph

Answer: Option D

Distance = (240 x 5) = 1200 km.

Speed = Distance/Time

Speed = 1200/(5/3) km/hr. [We can write 1 hours as 5/3 hours]

Required speed = 1200 x 3 km/hr = 720 km/hr. 5

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