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Two Trains 140 M And 160 M Long Run At The Speed Of 60 Km/hr And 40 Km/hr Respectively In Opposite Directions On Parallel Tracks. The Time Which They Take To Cross Each Other Is? |
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Answer» RELATIVE speed = 60 + 40 = 100 km/hr. = 100 * 5/18 = 250/9 m/sec. Distance COVERED in crossing each other = 140 + 160 = 300 m. REQUIRED time = 300 * 9/250 = 54/5 = 10.8 sec. Relative speed = 60 + 40 = 100 km/hr. = 100 * 5/18 = 250/9 m/sec. Distance covered in crossing each other = 140 + 160 = 300 m. Required time = 300 * 9/250 = 54/5 = 10.8 sec. |
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