SSC GD Constable previous year question
A 600 metres long train crosses a man walking in the opposite direction in 20 seconds. If the speed of the train is 5 times the speed of the man, then what is the speed of the train?
Asked in SSC GD Constable 2024: 21 Feb 2024 Shift 1 · Quantitative Aptitude
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Correct answer: (C) 90 km/hr
Combined closing speed = 6×(man's speed) = 600/20=30 m/s ⟹ man's speed=5 m/s, train speed = 25 m/s = 90 km/h.
हिंदी में प्रश्न
600 मीटर लंबी एक रेलगाड़ी, विपरीत दिशा में चल रहे एक व्यक्ति को 20 सेकंड में पार करती है। यदि रेलगाड़ी की चाल, व्यक्ति की चाल की 5 गुना है, तो रेलगाड़ी की चाल कितनी है?
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सही उत्तर: (C) 108 किलोमीटर प्रति घंटा
Combined closing speed = 6×(man's speed) = 600/20=30 m/s ⟹ man's speed=5 m/s, train speed = 25 m/s = 90 km/h.
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