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A can complete a work in 20 days and B i...

A can complete a work in 20 days and B in `22 1/2` days. They both work together for 6 days and the remaining work is completed by C in 26 days. In how many days the work will be completed, if all the three work together? /
किसी कार्य को A, 20 दिनों में पूरा कर सकता है और B उसे `22 1/2` दिनों में पूरा कर सकता है | वे दोनों मिलकर 6 दिनों तक एक साथ कार्य करते हैं और शेष कार्य को C द्वारा 26 दिनों में पूरा किया गया है | तीनों एक साथ मिलकर उसी कार्य को कितने दिनों में पूरा करेंगे?

A

8

B

9

C

12

D

10

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