General Aptitude › Problems on Trains › Question #2514
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Q A train speeds past a pale in 15 seconds and speeds past a platform 100 meters long in 25 seconds. Its length in meters is:

ID: #2514 Problems on Trains 517 views
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#2514Q ID
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  • A 200 ✔ ✖
  • B 150 ✔ ✖
  • C 50 ✔ ✖
  • D Data Inadequate ✔ ✖
Correct Answer

Explanation

length of the train be x meters and its 

 
speed be y meters/sec x/y = 15 
 
=> y = x/15 
 
=> (x+100)/25 = x/15 
 
=> x = 150 m
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