SSC GD Constable previous year question
Two trains are moving in opposite directions at 80 km/h and 70 km/h. The length of one train is 180 m and they take 19 seconds to cross each other. Find the length (in m) of the other train, correct to two decimal places.
Asked in SSC GD Constable 2025: 12 Feb 2025 Shift 3 (Evening) · Quantitative Aptitude
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Correct answer: (B) 611.66
Relative speed = (80+70) km/h = 150×5/18 = 41.67 m/s. Total distance covered = 41.67×19 ≈ 791.67 m. Length of other train = 791.67-180 = 611.66 m.
हिंदी में प्रश्न
दो ट्रेनें 80 km/h और 70 km/h की चाल से विपरीत दिशाओं में गति कर रही हैं। एक ट्रेन की लंबाई 180 m है। उन्हें एक-दूसरे को पार करने में 19 सेकंड का समय लगता है। दूसरी ट्रेन की लंबाई (m में) दशमलव के 2 स्थानों तक ज्ञात कीजिए।
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उत्तर और व्याख्या देखें
सही उत्तर: (B) 611.66
सापेक्ष चाल = (80+70) km/h = 150×5/18 = 41.67 m/s। कुल दूरी = 41.67×19 ≈ 791.67 m। दूसरी ट्रेन की लंबाई = 791.67-180 = 611.66 m।
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