A train is running at a speed of 36km/hour. If the length of the train is 200m, find the time (in second) taken by the train to pass by a pole.
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Answer:
20seconds
Step-by-step explanation:
speed=36km/h
3600=36×1000
1sec=36×1000/3600
1sec=10m
distance - 10 -. 200
time taken. -. 1. -. x
it is a direct variation
10/1=200/x
cross multiply
10x=200
x=200/10
x=20sec
time taken = 20seconds
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