RRB Technician Grade 3 previous year question
If 15 workers can build a wall in 10 days, how many workers are needed to build it in 6 days?
Asked in RRB Technician Grade 3 (06 Mar 2026 Shift 1) · Quantitative Aptitude
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Correct answer: (D) 25
Using the work formula M1D1 = M2D2: 15 workers x 10 days = 150 worker-days of total work. To finish in 6 days, workers needed = 150 / 6 = 25. Hence the correct answer is 25.
हिंदी में प्रश्न
यदि 15 मजदूर 10 दिनों में एक दीवार बना सकते हैं, तो 6 दिनों में वैसी ही एक और दीवार बनाने के लिए कितने मजदूरों की आवश्यकता होगी?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 25
कार्य सूत्र M1D1 = M2D2 से: 15 मजदूर x 10 दिन = 150 मजदूर-दिन कार्य। इसे 6 दिनों में पूरा करने हेतु आवश्यक मजदूर = 150/6 = 25। अतः सही उत्तर 25 है।
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