SSC GD Constable previous year question
Two trains of length 340 m and 360 m are moving in the same direction at speeds of 80 km/h and 90 km/h respectively. How much time (in minutes) will the faster train, coming from behind, take to completely cross the other train?
Asked in SSC GD Constable 2025: 07 Feb 2025 Shift 2 (Afternoon) · Quantitative Aptitude
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Correct answer: (C) 4.2
Relative speed = 10 km/h = 25/9 m/s. Total distance = 700 m. Time = 700/(25/9) = 252 sec = 4.2 minutes.
हिंदी में प्रश्न
340 m और 360 m लंबाई वाली दो रेलगाड़ियाँ एक ही दिशा में क्रमशः 80 km/h और 90 km/h की चाल से गतिमान हैं। पीछे से आ रही तेज चाल वाली रेलगाड़ी द्वारा दूसरी रेलगाड़ी को पूरी तरह से पार करने में कितना समय (मिनटों में) लगेगा?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 4.2
सापेक्ष चाल = 10 km/h = 25/9 m/s। कुल दूरी = 700 m। समय = 700/(25/9) = 252 सेकंड = 4.2 मिनट।
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