Question
Train A whose length is 180m is crosses a man standing
in the bridge in 4.5 seconds. Train B whose length is165 m, is running at a speed of 63 km/hr and moving in opposite direction to that of train A. Find the time required for train A to cross train B?Solution
According to the question, 180 = 4.5 * speed of train A Speed of train A = 40 m/s Speed of train B = 63*(5/18) = 35/2 m/s 345 = (40 + 35/2)* T (345*2)/ 115 = T T = 6 seconds
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