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प्रश्न
A train 120 m long passes a railway platform 160 m long in 14 sec. How long will it take to pass another platform which is 100 m long?
उत्तर
Distance covered = 120 m + 160 m = 280 m
Time taken = 14 seconds
∴ Speed = `"Distance"/"Time"`
= `280/14` = 20 m/s
In seconds case, distance
= 120 + 100 = 220 m
∴ Time taken = `220/20` sec = 11 sec
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