A is twice as good a work man as B and together they finish the work in 12 days. In how many days A alone can finish the work?
Choose the correct choice from the following answers:
A) 12 days B) 14 days C) 28 days D) 18 days E) 16 days
WC = 2:1   2x + x = 1/12 =&gt; x = 1/36   2x = 1/18   A can do the work in 18 days.   ANSWER:18 days
<result>D</result>
A is twice as good a work man as B and together they finish the work in 12 days. In how many days A alone can finish the work?