RRB Group D practice question
24 workers, working 7 hours a day, can finish a job in 15 days. If 20 workers work 9 hours a day, in how many days will the job be finished?
From a RRB Group D Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (A) 14 days
Total work = 24 × 15 × 7 = 2520 man-hours. Required days = 2520 / (20 × 9) = 2520/180 = 14 days.
हिंदी में प्रश्न
24 मज़दूर, प्रतिदिन 7 घंटे काम करते हुए, एक काम को 15 दिनों में पूरा कर सकते हैं। यदि 20 मज़दूर प्रतिदिन 9 घंटे काम करें, तो काम कितने दिनों में पूरा होगा?
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उत्तर और व्याख्या देखें
सही उत्तर: (A) 14 दिन
कुल कार्य = 24 × 15 × 7 = 2520 मानव-घंटे। आवश्यक दिन = 2520 / (20 × 9) = 2520/180 = 14 दिन।
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