SSC GD Constable previous year question
Two trains of lengths 300 m and 200 m are running in the same direction at speeds of 70 km/h and 120 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: 11 Feb 2025 Shift 3 (Evening) · Quantitative Aptitude
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Correct answer: (C) 0.6
Relative speed = 50 km/h = 50000/60 m/min; total distance = 500 m; time = 500/(50000/60) = 0.6 min.
हिंदी में प्रश्न
300 m और 200 m लंबाई वाली दो रेलगाड़ियाँ एक ही दिशा में क्रमशः 70 km/h और 120 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?
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सही उत्तर: (C) 0.6
सापेक्ष चाल = 50 km/h = 50000/60 m/मिनट; कुल दूरी = 500 m; समय = 500/(50000/60) = 0.6 मिनट।
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