A and B can do a piece of work in 12 days. With the help of C they finish the work in 6 days. C alone can do that piece of work in?
Choose the correct choice
A) 33 B) 878 C) 30 D) 88 E) 12
C = 1/6 â€“ 1/12 = 1/12 =&gt; 12 days   Answer: 12
<result>E</result>
A and B can do a piece of work in 12 days. With the help of C they finish the work in 6 days. C alone can do that piece of work in?