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Eight persons can finish a work in 20 da...

Eight persons can finish a work in 20 days. After 5 days they were requested to complete the work in the next 8 days. How many more persons should join the group to fulfill the requirement?
आठ व्यक्ति 20 दिनों में एक काम पूरा कर सकते हैं। 5 दिनों काम करने के बाद उन्हें अगले 8 दिनों में काम पूरा करने का अनुरोध किया गया। आवश्यकता को पूरा करने के लिए कितने और व्यक्तियों को समूह में शामिल करना चाहिए?

A

23

B

15

C

7

D

12

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