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An experienced carpenter can complete a ...

An experienced carpenter can complete a woodwork in 8 days. A young carpenter can complete the same work in 12 days. Both work together for 3 days, and then the latter leaves. How many days will be taken by the former to complete the remaining work?
एक अनुभवी बढ़ई 8 दिनों में एक लकड़ी का काम पूरा कर सकता है। एक युवा बढ़ई उसी काम को 12 दिनों में पूरा कर सकता है। दोनों 3 दिनों के लिए एक साथ काम करते हैं, और फिर युवा बढ़ई इस कार्य को छोड़ देता है। शेष कार्य पूरा करने में अनुभवी बढ़ई कितने दिन का समय लेगा?

A

3

B

4

C

2

D

6

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