General Aptitude › Problems on Trains › Question #2529
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QA 300 m long train crosses a platform in 39 sec while it crosses a signal pole in 18 sec. What is the length of the platform?

ID: #2529 Problems on Trains 650 views
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#2529Q ID
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  • A 320 m ✔ ✖
  • B 350 m ✔ ✖
  • C 650 m ✔ ✖
  • D None of these ✔ ✖
Correct Answer

Explanation

Speed = 300/18 = 50/3 m/sec.

Let the length of the platform be x meters.
Then, (x + 300)/39 = 50/3
3x + 900 = 1950 => x = 350 m.
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