A is thrice as good a workman as B and therefore able to finish a piece of work in 60 days less than B. How much time will they both take to finish it together?
1
\(\rm 11\frac{1}{3}\ days\)
2
\(\rm 22\frac{1}{2}\ days\)
3
\(\rm 33\frac{1}{3}\ days\)
4
None of these