James can do a work in 5 days, William in 8 days and Peter in 12 days. Find the time taken by James, William and Peter to do the work if they work together.
1
\(1{22 \over 49}\) days
2
\(2{25 \over 49}\) days
3
\(2{22 \over 49}\) days
4
\(2{23 \over 49}\) days