A and B can do a piece of work in 3 days, B and C in 4 days, C and A in 6 days. How long will C take to do it?	Answers:
A) 25 days
B) 14 days
C) 24 days
D) 145 days
E) 78 days
2c =1/4 + 1/6 – 1/3 = 1/12   c = 1/24 =&gt; 24 days   Answer: 24 days
<result>C</result>
A and B can do a piece of work in 3 days, B and C in 4 days, C and A in 6 days. How long will C take to do it?