A: Distance covered by the train in 1 km = 18/1000 = 180 m. Speed of train in 1 km = 18/10 = 18 m/sec. Length of train in m = 180 * 9 = 270. The answer is (C).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:A train covers a distance of 18 km in 10 min. If it takes 9 sec to pass a telegraph post, then the length of the train is? Answer Choices: A)120m B)180m C)270m D)220m E)280m