A is 30% more efficient than B. a can complete a work in 23 days. If A and B work together, how much time will it take to complete the same work?

 A is 30% more efficient than B. a can complete a work in 23 days. If A and B work together, how much time will it take to complete the same work?

A). 10 Days

B). 13 Days

C).  12 Days

D). 11 Days

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