A car takes 6 hours to cover a distance of 630 Km. how much should the speed in Kmph be maintained to cover the same direction in 3/2th of the previous time?	Choose the correct choice from the following options
A) 48 kmph  B) 50 kmph  C) 52 kmph  D) 56 kmph  E) 70 kmph

Rationale: "time = 6 distence = 630 3 / 2 of 6 hours = 6 * 3 / 2 = 9 hours required speed = 630 / 9 = 70 kmph e"
Answer: E