An aeroplane covers a certain distance at a speed of 120 kmph in 4 hours. To cover the same distance in 1 2/3 hours, it must travel at a speed of:
Select:
A) 520	B) 288	C) 820	D) 740	E) 720
Distance = (240 x 5) = 480 km.   Speed = Distance/Time   Speed = 480/(5/3) km/hr. [We can write 1 2/3 hours as 5/3 hours]   Required speed = (480 x 3/5) km/hr = 288 km/hr   Answer 288) 288 Km/hr
<result>B</result>
An aeroplane covers a certain distance at a speed of 120 kmph in 4 hours. To cover the same distance in 1 2/3 hours, it must travel at a speed of: