SSC GD Constable previous year question
P can complete one round of a circular track in 1 minute 30 seconds while Q can complete one round of the same track in 45 seconds. If they start from the same point and move in opposite directions, after how many seconds will they meet each other?
Asked in SSC GD Constable 2025: 10 Feb 2025 Shift 1 (Morning) · Quantitative Aptitude
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Correct answer: (B) 30
Meeting time (opposite directions) = 1/(1/90+1/45) = 1/(3/90) = 30 seconds.
हिंदी में प्रश्न
P वृत्ताकार पथ का एक चक्कर 1 मिनट और 30 सेकंड में पूरा कर सकता है जबकि Q उस पथ का एक चक्कर 45 सेकंड में पूरा कर सकता है। यदि वे एक ही बिंदु से और विपरीत दिशाओं में चलना शुरू करते हैं, तो वे कितने सेकंडों के बाद एक-दूसरे से मिलेंगे?
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उत्तर और व्याख्या देखें
सही उत्तर: (B) 30
मिलने का समय (विपरीत दिशाओं में) = 1/(1/90+1/45) = 1/(3/90) = 30 सेकंड.
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