A train passes two bridges of length 400 m and 200 m. in 50 seconds and 30 seconds respectively. The length of the train is-

A train passes two bridges of length 400 m and 200 m. in 50 seconds an

1.	A train passes two bridges of length 400 m and 200 m. in 50 seconds and 30 seconds respectively. The length of the train is-
A.	100
B.	225
C.	50
D.	125
Answer» B. 225

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A train passes two bridges of length 400 m and 200 m. in 50 seconds and 30 seconds respectively. The length of the train is-

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