A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
Answers
Answered by
6
Answer:
240 m
Step-by-step explanation:
Train passes 36 sec but man standing 20sec so (36-20=16)
speed= 15m/sec
length=16*15=240m
Answered by
10
Answer:
240 m
Step-by-step explanation:
Let the length of the platform be 'x' m.
Given, Speed of the train = 54 km/hr
= 54 * (5/18) m/s
= 15 m/s
Given that train passes man in 20 seconds.
Length of train = 15 * 20
= 300 m.
We know that Speed = Distance/Time
⇒ 15 = (x + 300)/36
⇒ 36 * 15 =x +300
⇒ 540 = x + 300
⇒ 240 = x.
Therefore, the length of the platform = 240 m.
Hope it helps!
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