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प्रश्न
A train whose length is 150 m, passes a telegraph pole in 10 sec. Find the speed of the train in km/h.
बेरीज
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उत्तर
Distance = 150 m
Time taken = 10 sec
∴ Speed = `150/10` = 15 m/s
= `(15xx60xx60)/1000` km/h
= 54 km/h
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