Answers

2014-06-01T10:24:04+05:30
Let the length of the plateform = x
speed of train = 60*1000/3600 = 100/6 = 50/3 m/s
total distance = 200 + x
30 = (200+x)/(50/3)
30 = (200+x)3/50
500 = 200+x
x = 300 m. 
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