If A, B and C work individually, then they can finish a piece of work in 27, 36 and 45 days respectively. How many days are required to complete the task if they work together?
1
\(13\frac{11}{47}\)
2
\(15\frac{9}{47}\)
3
\(10\frac{33}{47}\)
4
\(11\frac{23}{47}\)