A alone can do a work in 16 days B alone can do the same work in 32 days C alone can do the sam...........

Quantitative Aptitude (CDS) Time and work

A alone can do a work in 16 days, B alone can do the same work in 32 days, C alone can do the same work in 48 days. They all started working together and after 4 days C completely left the work. B also completely left the work but just 2 days before the completion of work. What is the total number of days required to complete the work?

67/4 days