Discussion :: Time and Distance
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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:
Answer : Option D
Explanation :
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*\(\frac { 3} {5 } \)]km/hr =720km/hr
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