Question for genius:
Uncle Tony is walking along the platform of a train station at 100m/min. A train overtakes him completely in 15 seconds. The length of the train is 200m. What is the speed of the train?
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Answered by
9
let speed of train be x
relative speed of train = x -100/60
distance = speed × time
200 = x - 100/60) × 15
200/15 + 100/60 = x
40/3+ 5/3 = x
45/3 = x
x = 15
relative speed of train = x -100/60
distance = speed × time
200 = x - 100/60) × 15
200/15 + 100/60 = x
40/3+ 5/3 = x
45/3 = x
x = 15
Answered by
3
here is your answer explained
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