Q: Two trains are traveling on parallel tracks in the same direction. The faster train travels at 130 miles per hour, while the slower train travels at 100 miles per hour. At 2 o’clock the faster train is 15 miles behind the slower one. How far apart are the two trains at 5 o'clock?\nOptions:\n(A) 60 miles\n(B) 80 miles\n(C) 75 miles\n(D) 120 miles\n(E) 400 miles Let's give some random thoughts before answering.
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Answer = C. 75 miles\nRelational speed = 130 - 100 = 30 miles per hour\nIn 3 hours, difference = 30 * 3 = 90 miles\nFast train trailing 15 miles, so effective difference = 90 - 15 = 75 miles
Therefore, the answer is (C).
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