RRB Technician Grade 3 practice question
Meena can complete a piece of work in 33 days and Kavita can complete the same work in 7 days. Working together, in how many days will they complete the work?
From a RRB Technician Grade 3 Reasoning practice set · Reasoning
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Correct answer: (D) 5.78 days
Meena's 1-day work = 1/33; Kavita's 1-day work = 1/7. Together, 1-day work = 1/33 + 1/7 = 231/40. So time taken = 40/231 = 5.78 days.
हिंदी में प्रश्न
Meena एक काम को 33 दिनों में पूरा कर सकता है और Kavita उसी काम को 7 दिनों में पूरा कर सकता है। दोनों मिलकर काम करें तो वे काम कितने दिनों में पूरा करेंगे?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 5.78 days
Meena का 1 दिन का काम = 1/33; Kavita का 1 दिन का काम = 1/7। दोनों मिलकर 1 दिन का काम = 1/33 + 1/7 = 231/40। अतः समय = 40/231 = 5.78 days।
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