A car takes 4 hours to cover a distance of 540 Km. how much should the speed in Kmph be maintained to cover the same direction in 3/2th of the previous time? Pick:
A) 92 kmph
B) 98 kmph
C) 90 kmph
D) 80 kmph
E) 82 kmph

Rationale: "time = 4 distence = 540 3 / 2 of 4 hours = 4 * 3 / 2 = 6 hours required speed = 540 / 6 = 90 kmph c )"
Answer: C