If A, B and C together can finish a piece of work in 4 days. A alone in 12 days and B in 24 days, then C alone can do it in? Choose the correct choice from the following answers
A) 1
B) 7
C) 8
D) 9
E) 6
8 = 1/4 - 1/12 – 1/24 = 1/8 =&gt; 8 days'   Answer: 8
<result>C</result>
If A, B and C together can finish a piece of work in 4 days. A alone in 12 days and B in 24 days, then C alone can do it in?