RRB JE practice question
Aman can complete a piece of work in 7 days and Vikram can complete the same work in 13 days. Working together, in how many days will they complete the work?
From a RRB JE Reasoning practice set · Reasoning
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Correct answer: (D) 4.55 days
Aman's 1-day work = 1/7; Vikram's 1-day work = 1/13. Together, 1-day work = 1/7 + 1/13 = 91/20. So time taken = 20/91 = 4.55 days.
हिंदी में प्रश्न
Aman एक काम को 7 दिनों में पूरा कर सकता है और Vikram उसी काम को 13 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) 4.55 days
Aman का 1 दिन का काम = 1/7; Vikram का 1 दिन का काम = 1/13। दोनों मिलकर 1 दिन का काम = 1/7 + 1/13 = 91/20। अतः समय = 20/91 = 4.55 days।
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