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 80 miles per hour. At 2 o’clock the faster train is 20 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) 90 miles\n(D) 130 miles\n(E) 400 miles Let's give some random thoughts before answering.
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Answer = D. 130 miles\nRelational speed = 130 - 80 = 50 miles per hour\nIn 3 hours, difference = 50 * 3 = 150 miles\nFast train trailing 20 miles, so effective difference = 150 - 20 = 130 miles
Therefore, the answer is (D).
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