A van takes 5 hours to cover a distance of 450 km. What speed in kph should the van maintain to cover the same distance in 3/2 of the previous time?	Pick one.
A) 56	B) 60	C) 64	D) 68	E) 72

Rationale: "( 3 / 2 ) * 5 = 7.5 hours 450 / 7.5 = 60 kph the answer is b ."
Answer: B