A and B can together do a piece of work in 10 days. If A works with twice of his efficiency and B works with an efficiency 1/3rd less than his efficiency, then the work gets completed in 6 days. In how many days can A and B do the work alone respectively?
A) 40/3, 40 B) 20/3, 20 C) 30, 20/3 D) 50/3, 25
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