A and B can do a piece of work in 6 days, B and C in 8 days, C and A in 12 days. How long will C take to do it?  Choose the correct choice.
A) 48 days B) 55 days C) 24 days D) 33 days E) 40 days
2c = 1/8 + 1/12 – 1/6= 1/24   c = 1/48 =&gt; 48 days   48 daysnswer: 48 days
<result>A</result>
A and B can do a piece of work in 6 days, B and C in 8 days, C and A in 12 days. How long will C take to do it?