If a distance travelled by a train is 495 km in 4 hrs, 30 minutes. What is its speed?
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https://www.meritnation.com/ask-answer/question/a-train-is-running-at-a-speed-of-120km-h-calculate-the-dist/motion-and-time/7451217
https://www.meritnation.com/ask-answer/question/a-train-is-running-at-a-speed-of-120km-h-calculate-the-dist/motion-and-time/7451217