Question
Train ‘A’ takes 12 seconds to cross a pole and 30
seconds to cross a 360 metre long bridge. If the length of the train had been 200 metres then find the time taken by it to cross 100 metre long bridge with same speed.Solution
According to the question,
Train ‘A” took (30 – 12 = 18 seconds) to travel 360 metres
Therefore, speed of the train = 360/18 = 20 m/sec
Now, total distance to be travelled = 200 + 100 = 300 metres
Required time taken = 300/20 = 15 seconds
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