An bus covers a certain distance at aspeed of 320 kmph in 5 hours. To cover the same distance in 1hr, it must travel at a speed of?  Choose one:
A) 560 km/h
B) 960 km/h
C) 779 km/h
D) 723 km/h
E) 720 km/h
Distance = (320 x 5) = 1600 km.   Speed = Distance/Time   Speed = 1600/(5/3) km/hr. [We can write 1 hours as 5/3 hours]   Required speed = 1600 x 3/5 km/hr = 960 km/hr.   960 km/h
<result>B</result>
An bus covers a certain distance at aspeed of 320 kmph in 5 hours. To cover the same distance in 1hr, it must travel at a speed of?