1/8 + 1/14 = 11/56
56/11 = 5 days
A and B complete a work in 8 days. A alone can do it in 14 days. If both together can do the work in how many days?
(1) 5 days
(2) 8 days
(3) 6 days
(4) 3.15 days
(5) 2.75 days