A is twice as good a work man as B and together they finish the work in 6 days. In how many days A alone can finish the work? Select the correct option:
A) 3
B) 9
C) 7
D) 2
E) 6
WC = 2:1   2x + x = 1/6 =&gt; x = 1/18   2x = 1/9   A can do the work in 9 days.   Answer: 9
<result>B</result>
A is twice as good a work man as B and together they finish the work in 6 days. In how many days A alone can finish the work?