IBPS RRB Office Assistant (Multipurpose) Prelims practice question
7 men and 9 women, working 7 hours a day, can finish weaving a lot of carpets in 18 days, given that 1 man's work rate equals that of 2 women. If only 23 women work 6 hours a day, in how many days will they finish the same job?
From a IBPS RRB Office Assistant (Multipurpose) Prelims Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (C) 21 days
Let 1 woman's rate = 1 unit/hr, so 1 man's rate = 2 units/hr.
Total work = (7×2+9)×7×18 = 23×126 = 2898 units.
23 women at 6 hrs/day give 138 units/day.
Days required = 2898/138 = 21 days.
हिंदी में प्रश्न
7 आदमी और 9 महिलाएं, प्रतिदिन 7 घंटे काम करते हुए, कालीनों के एक लॉट को बुनने का कार्य 18 दिनों में पूरा कर सकते हैं, जबकि 1 आदमी की कार्य-दर 2 महिलाओं के बराबर है। यदि केवल 23 महिलाएं प्रतिदिन 6 घंटे काम करें, तो वे उसी कार्य को कितने दिनों में पूरा करेंगी?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 21 दिन
मान लें 1 महिला की दर = 1 इकाई/घंटा, तो 1 आदमी की दर = 2 इकाई/घंटा।
कुल कार्य = (7×2+9)×7×18 = 2898 इकाई।
23 महिलाएं 6 घंटे/दिन काम करने पर 138 इकाई/दिन देती हैं।
आवश्यक दिन = 2898/138 = 21 दिन।
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