A can do a piece of work in 14 days and B in 20 days. They began the work together but 5 days before the completion of the work, A leaves. The work was completed in? Choose the correct choice from the following
A) 15 3/17 days  B) 11 3/17 days  C) 12 3/17 days  D) 19 3/17 days  E) 13 3/17 days
11 3/17 days   (x â€“ 5)/14 + x/20 = 1   x = 11 3/17 days
<result>B</result>
A can do a piece of work in 14 days and B in 20 days. They began the work together but 5 days before the completion of the work, A leaves. The work was completed in?