SSC GD Constable previous year question
On an 800 m circular track, Ram and Mohan start running at the same time from the same point in the same direction at speeds of 25 m/sec and 40 m/sec respectively. After how much time will they first meet again at the starting point?
Asked in SSC GD Constable 2025: 07 Feb 2025 Shift 1 (Morning) · Quantitative Aptitude
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Correct answer: (A) 160 seconds
Time to complete one lap: Ram = 800/25 = 32 s, Mohan = 800/40 = 20 s. LCM(32, 20) = 160 s.
हिंदी में प्रश्न
800 m लम्बी एक वृत्ताकार दौड़ में, राम और मोहन एक ही समय पर एक ही स्थान से क्रमशः 25 m/sec और 40 m/sec की चाल से दौड़ना आरंभ करते हैं। एक ही दिशा में दौड़ते हुए, कितने समय बाद वे पहली बार प्रारम्भिक स्थान पर मिलेंगे?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
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सही उत्तर: (A) 160 सेकंड
एक चक्कर पूरा करने का समय: राम = 800/25 = 32 सेकंड, मोहन = 800/40 = 20 सेकंड। LCM(32, 20) = 160 सेकंड।
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