Two trains of same length are running in parallel tracks in opposite directions with speeds 65 km/h and 85 km/h respectively. They cross each other in 6 s . The length of each train is?
Aptitude
Problems on Trains
Choose an option
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A100 m
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B115 m
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C125 m
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D150 m
Answer
Correct Answer: 125 m
Explanation
Let length of each train be L m. Then. (65 + 85 ) x 5/18 = (L + L)/6 ⇒ (150 x 5 x 6)/18 = 2L ⇒ 2L = 250 ∴ L = 125 m