a 340 m long train travelling at a unifrom speed takes 2 min to pass a telegraph post what its speed in km/hr
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he train covers 340 m in 2 min. Therefore, its average speed (in minutes) is 340/2 = 170 m/min.
There are 60 minutes in 1 hour. So, the train travels 170x60 m in 1 hour.
Its average speed is (10200/1000) km/hr or 10.2 kmph.
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