A train passes two bridges of lengths 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is :1). 80 m2). 90 m3). 200 m4). 150 m

A train passes two bridges of lengths 800 m and 400 m in 100 seconds a

1.	A train passes two bridges of lengths 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is :1). 80 m2). 90 m3). 200 m4). 150 m
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A train passes two bridges of lengths 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is :1). 80 m2). 90 m3). 200 m4). 150 m

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