A can do a work in 8 days. B can do the same work in 16 days. If both A & B are working together in how many days they will finish the work?  Choose one: A) 3 days B) 16/3 days C) 3/4 days D) 9/12 days E) 5/7 days
A rate = 1/8   16/3 days rate = 1/16   (A+16/3 days) rate = (1/8)+(1/16) = 3/16   A &amp; 16/3 days finish the work in 16/3days   correct option is 16/3 days
<result>B</result>
A can do a work in 8 days. B can do the same work in 16 days. If both A & B are working together in how many days they will finish the work?