RRB NTPC CBT-1 previous year question
Two trains are running on parallel tracks in the same direction. Train A is 90 m long and moves at 54 km/h. Train B is 75 m long and moves at 36 km/h. How much time will Train A take to completely overtake Train B?
Asked in RRB NTPC 2026 — 16 June Shift 2 · Quantitative Aptitude
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Correct answer: (C) 33 seconds
Relative speed = (54-36) km/h = 18 km/h = 5 m/s; combined length = 90+75 = 165 m; time to overtake = 165/5 = 33 seconds.
हिंदी में प्रश्न
दो ट्रेनें समानांतर पटरियों पर एक ही दिशा में चल रही हैं। STA की लंबाई 90 ॥ है और इसकी चाल 54 km/h है। ट्रेन 75 की लंबाई 36 है और इसकी चाल 36 km/h CI SATA को ट्रेन 8 को पूरी तरह से आओवरटेक करने में कितना समय लगेगा?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 33
सापेक्ष गति = (54-36) किमी/घं = 18 किमी/घं = 5 मी/से; कुल लंबाई = 90+75 = 165 मी; ओवरटेक करने का समय = 165/5 = 33 सेकंड है।
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