a train passes a telegraph posts which are placed 76metres apart alongside a railway track at intervals of 4 seconds. at what rate is the train travelling in km per hr
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Step-by-step explanation:
distance = 76m= 0.076km
time = 4 sec = 0.00111 hr
speed = distance/ time === 0.076/0.00111
= 68.46 km per hr
By the way I'm not sure !
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