Discussion :: Problems on Trains
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A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?
Answer : Option B
Explanation :
Speed = | \([\frac { 300 } { 18 }]\) | m/sec =\(\frac { 50 } { 3 }\) | m/sec. | |||
Let the length of the platform be x metres.
Then, | \([\frac { X +300 } { 39 }]\) | =\(\frac { 50 } { 3 }\) | ||||
3(x + 300) = 1950
x = 350 m.
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