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Two Trains Of Length 150 M And 200 M Respectively, Are Travelling In Opposite Directions At A Speed Of 54 Km/hr And 72 Km/hr. What Is The Total Time Taken By Them To Cross Each Other? |
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Answer» 54 km/hr = 54 X (5/18) = 15m/s 72 km/hr = 72 x (5/18) = 20 m/s Total distance = 150 + 200 = 350 m Relative speed = 15 + 20 = 35 m/s Total time = Total distance/Relative speed = 350/35 = 10s 54 km/hr = 54 x (5/18) = 15m/s 72 km/hr = 72 x (5/18) = 20 m/s Total distance = 150 + 200 = 350 m Relative speed = 15 + 20 = 35 m/s Total time = Total distance/Relative speed = 350/35 = 10s |
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