An bus covers a certain distance at aspeed of 150 kmph in 5 hours. To cover the same distance in 1hr, it must travel at a speed of?	Choose the correct choice from the following options.
A) 560 km/h	B) 450 km/h	C) 779 km/h	D) 723 km/h	E) 720 km/h
Distance = (150 x 5) = 750 km.   Speed = Distance/Time   Speed = 750/(5/3) km/hr. [We can write 1 hours as 5/3 hours]   Required speed = 750 x 3/5 km/hr = 450 km/hr.   450 km/h
<result>B</result>
An bus covers a certain distance at aspeed of 150 kmph in 5 hours. To cover the same distance in 1hr, it must travel at a speed of?