A and B can do a piece of work in 6 days. With the help of C they finish the work in 5 days. C alone can do that piece of work in?
Choose the correct choice from the following answers
A) 15.5 days  B) 19.5 days  C) 17.5 days  D) 16.5 days  E) 30 days
C = 1/5 – 1/6 = 1/30 =&gt; 30 days   ANSW30 daysR:30 days
<result>E</result>
A and B can do a piece of work in 6 days. With the help of C they finish the work in 5 days. C alone can do that piece of work in?