A works twice as fast as B. if B can complete a work in 12 days independently. The number of days in which A and B can together finish the work?

 A works twice as fast as B. if B can complete a work in 12 days independently. The number of days in which A and B can together finish the work?

A). 2 days

B). 4 days

C). 6 days

D). 8 days

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