A is twice as good a workman as B and together they finish a piece in 18 days. In how many days will A alone finish the work?	Choose the correct choice from the following choices:
A) 25 days
B) 26 days
C) 23 days
D) 45 days
E) 27 days
Sol. (A’s 1 day’s work):)(B’s 1 days work) = 2 : 1.   (A + B)'s 1 day's work = 1/18   Divide 1/18 in the ratio 2 : 1.   :. A’s 1 day's work =(1/18*2/3)=1/27   Hence, A alone can finish the work in 27 days.   Ans: 27 days
<result>E</result>
A is twice as good a workman as B and together they finish a piece in 18 days. In how many days will A alone finish the work?