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1. A train moves past a phone post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?

(please solve this for maths type which i could understand


Lent the length of the train be x meters and its speed be y meters per second
then x/y=8   and x=8y
now   x+264/20=y
speed=22m/sec  (22*18/5)km/hr
79.2 km/hr

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