a train of length 200m traveling at 40m/s overtakes another train of 300m length traveling at 20m/s in same direction .the time taken by the first train to pass second train is
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The Model Millionaire (Author: Oscar Wilde) tried everything. He had gone on the Stock Exchange for six months; but what was a butterfly to do among bulls and bears? He had been a tea-merchant for a little longer, but had soon tired of pekoe and souchong.
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The Model Millionaire
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Answer:
25 seconds
Explanation:
Given - the lenght of the train A be - 200m
the lenght of train B be - 300m
velocity of train A is 40m/s
velocity of train B is 20m/s
the train are being traveled in same direction so the relative velocity will be 40-20= 20 m/s
total distance = 300 m + 200 m = 500 m
time taken = total distance / relative time
= 500 / 20 = 25 s
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