P alone can complete a piece of work in 14 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together? Choose the correct choice from the following choices:
A) 6 (1/4) days	B) 21/2 days	C) 7 (3/4) days	D) 8/5 days	E) 9 (3/4) days
Work done by P alone in one day = 1/14th of the total work done by Q alone in one day = 1/3(of that done by P in one day) = 1/3(1/14 of the total) = 1/42 of the total.   Work done by P and Q, working together in one day = 1/14 + 1/42 = 4/42 of the total   They would take 42/4 days = 21/2 days to complete the work working together.   ANSWER:21/2 days
<result>B</result>
P alone can complete a piece of work in 14 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together?