SSC GD Constable practice question
A faster train, 300 meters long, crosses a platform 600 meters in length in 40 seconds. A slower train, 450 meters long, takes 60 seconds to cross the same platform. Find the time it will take for the two trains to completely pass each other when traveling in opposite directions.
From a SSC GD Constable General Awareness practice set · General Awareness
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Correct answer: (A) 18.75 seconds
Faster train's speed = (300+600)/40 = 22.5 m/s; slower train's speed = (450+600)/60 = 17.5 m/s; time to cross each other = (300+450)/(22.5+17.5) = 750/40 = 18.75 seconds.
हिंदी में प्रश्न
300 मीटर लंबाई वाली एक तेज चाल वाली टे न 600 मीटर लंबे ेटफॉम को 40 सेकंड म• पार करती है। 450 मीटर लंबाई वाली एक धीमी चाल वाली टे न , उसी ेटफॉम को पार करने म• 60 सेकंड का समय लेती है। िवपरीत िदशाओं म• यात्रा करते समय दोनों टे नों को एक - दूसरे को पूरी तरह से पार करने म• लगने वाला समय ात कीिजए।
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सही उत्तर: (A) 18.75 seconds
तेज़ ट्रेन की चाल = (300+600)/40 = 22.5 मी/से; धीमी ट्रेन की चाल = (450+600)/60 = 17.5 मी/से; एक-दूसरे को पार करने का समय = (300+450)/(22.5+17.5) = 750/40 = 18.75 सेकंड।
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