A is twice as good workman as B, and together they complete a work in 3 days. In how many days can the work be complete by B alone?  Answers
A) 35 days B) 65 days C) 9 days D) 75 days E) 95 days
B=3A   9 days   9 days
<result>C</result>
A is twice as good workman as B, and together they complete a work in 3 days. In how many days can the work be complete by B alone?