the length of a train is 140 M and its speed is 72 km per hour how long will it take to cross a pole and a platform 220 M long
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D =140+220=360
S= 72
= 5/18*72
=20 m/s
T =?
D=T*S
T=D/S
=360/20
=18 minutes
S= 72
= 5/18*72
=20 m/s
T =?
D=T*S
T=D/S
=360/20
=18 minutes
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