An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in hours, it must travel at a speed of

An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in hours, it must travel at a speed of
a) 300 kmph
b) 360 kmph
c) 600 kmph
d) 720 kmph