IBPS RRB Officer Scale-I Prelims practice question
Vikram can complete a piece of work in 18 days and Arjun can complete the same work in 7 days. Working together, in how many days will they complete the work?
From a IBPS RRB Officer Scale-I Prelims Reasoning practice set · Reasoning
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Correct answer: (C) 5.04 days
Vikram's 1-day work = 1/18; Arjun's 1-day work = 1/7. Together, 1-day work = 1/18 + 1/7 = 126/25. So time taken = 25/126 = 5.04 days.
हिंदी में प्रश्न
Vikram एक काम को 18 दिनों में पूरा कर सकता है और Arjun 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: (C) 5.04 days
Vikram का 1 दिन का काम = 1/18; Arjun का 1 दिन का काम = 1/7। दोनों मिलकर 1 दिन का काम = 1/18 + 1/7 = 126/25। अतः समय = 25/126 = 5.04 days।
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