1.

A train 350 metres long crosses an electric pole in 28 seconds. Find the speed ofthe train in km/hr.

Answer»

Speed= Distance / time

Given:

Distance= 350mTime= 28 secSpeed= 350/28= 25/2 m/sec25/2*18/5= 5*9 km/hr= 45 km/hr

given d=350mt=28sspeed =distance/time 350/28=25/225/2×18/5=5×9=45 ans



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