A: The train travels a distance of 100 - 100 = 10 m in the first 15 seconds. It travels a distance of 10 * 25 = 250 m in the next 25 seconds. So, its length is 250 - 100 = 150 m. The answer is (D).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is: Answer Choices: A)145 B)146 C)147 D)150 E)152