 
 <translate> 72 kmph = 72 * 5/18 = 20 mps
D = Speed * time = 20 * 30 = 600 m. So the final answer is (B). <hau> 72 kmph = 72 * 5/18 = 20 mps D = Saurin * lokaci = 20 * 30 = 600 m. Saboda haka amsar karshe ita ce (B). 