train runs at a speed of 72 km per hour it crosses a pole in 27 seconds find the length of the train
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speed = 72 km/hr = 72 × 5 ÷18 = 20m/s
time = 27 sec
distance = time × speed
= 27 × 20 = 540 metres
hope it will help
time = 27 sec
distance = time × speed
= 27 × 20 = 540 metres
hope it will help
DVP111:
why 72*5
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