1. A 210 metre long train crosses a man running at 9 kmph in opposite direction in 6 seconds. Find the speed of the train.






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  • By: anil on 05 May 2019 01.16 am
    let the speed of train be a km/hr As both man and train are moving towards each other and hence the relative speed will be (a+9) km/hr = (a + 9) x $$frac{5}{18}$$ Length of Train = 210 m Time taken = 6 sec using Distance = Speed x Time 210 = (a + 9) x $$frac{5}{18}$$ x 6 a = (126 - 9) = 117 km/hr
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