A train crosses a platform in 25 sec, same train crosses another platform of length 400 m in 30 sec. If the length of the train is 200m , find the length of the platform?  Choose the correct choice from the following choices:
A) 280m
B) 180m
C) 350m
D) 300m
E) 267m
Length of the platform be ‘X’   (X + 200)/25 = (200 + 400)/30   6X + 1200 = 3000   X = 300m   Answer: 300m
<result>D</result>
A train crosses a platform in 25 sec, same train crosses another platform of length 400 m in 30 sec. If the length of the train is 200m , find the length of the platform?