After working for 6 days, Ashok finds that only 1/3 rd of the work has been done. He employs Ravi who is 60% as efficient as Ashok. How many days more would Ravi take to complete the work?  Choose the correct choice from the following:
A) 20 days  B) 24 days  C) 27 days  D) 21 days  E) 26 days
20 days   20 days   1/3 ---- 6   1 -------? 20 days = 18   R = 1/18 * 60/100 = 1/30   1 ----- 1/30   2/3 ----? =&gt; 20 days
<result>A</result>
After working for 6 days, Ashok finds that only 1/3 rd of the work has been done. He employs Ravi who is 60% as efficient as Ashok. How many days more would Ravi take to complete the work?