Emergency train
Algebra
Level
2
A train is running at the speed of 45km/h is 400m long. How much time it take to pass a signal post? (in seconds)
The answer is 32.
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1 solution
Speed of the train in m/s(s)= 1 8 5 ∗ 4 5
Time taken to pass a signal post= s 4 0 0
s is the speed
Hence the time taken =32seconds