Question
Train ‘I’ takes 16 seconds to cross a pole and 36
seconds to cross a 400 metre long bridgIf the length of the train had been 320 metres then find the time taken by it to cross a 160 metre long bridge with same speed.Solution
According to the question,
Train ‘I’ took (36 – 16 = 20 seconds) to travel 400 metres
Therefore, speed of the train = 400 / 20 = 20 m/sec
Now, total distance to be travelled = 320 + 160 = 480 metres
Required time taken = 480 / 20 = 24 seconds
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