SSC GD Constable previous year question
Two trains travelling in opposite directions cross each other in 25 seconds. If the length of both the trains is 250 m each and the speed of one of them is 45 km/hr, what would be the speed of the other train?
Asked in SSC GD Constable 2025: 07 Feb 2025 Shift 3 · Quantitative Aptitude
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Correct answer: (C) 27 km/hr
Total distance = 500 m in 25 s ⟹ relative speed = 20 m/s = 72 km/hr; other train's speed = 72 − 45 = 27 km/hr.
हिंदी में प्रश्न
विपरीत दिशाओं में यात्रा कर रही दो ट्रेनें एक-दूसरे को 25 सेकंड में पार करती हैं। यदि दोनों ट्रेनों की लंबाई 250 मीटर प्रत्येक है और उनमें से एक की गति 45 किमी/घंटा है, तो दूसरी ट्रेन की गति क्या होगी?
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उत्तर और व्याख्या देखें
सही उत्तर: (C) 27 किमी/घंटा
कुल दूरी = 500 मीटर, 25 सेकंड में ⟹ सापेक्ष गति = 20 मी/से = 72 किमी/घंटा; दूसरी ट्रेन की गति = 72 − 45 = 27 किमी/घंटा।
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