An bus covers a certain distance at aspeed of 100 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 answers:
A) 560 km/h
B) 567 km/h
C) 300 km/h
D) 723 km/h
E) 720 km/h
Distance = (100 x 5) = 500 km.   Speed = Distance/Time   Speed = 500/(5/3) km/hr. [We can write 1 hours as 5/3 hours]   Required speed = 500 x 3/5 km/hr = 300 km/hr.   300 km/h
<result>C</result>
An bus covers a certain distance at aspeed of 100 kmph in 5 hours. To cover the same distance in 1hr, it must travel at a speed of?