Train Passes by a lamp post at platform in 7 sec. and passes by the pl – McqOptions

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1.	Train Passes by a lamp post at platform in 7 sec. and passes by the platform completely in 28 sec. If the length of the platform is 390 m,then length of train (in meter) is
A.	120
B.	130
C.	140
D.	150
Answer» C. 140

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