A alone can complete the work in 12 days and B alone can complete the work in 16 days. They both work for 5 days then left the work. The remaining work is completed by C in 6.5 days. In what time A, B, and C can complete 3/4th of the work?
1
7 days
2
2 days
3
4 days
4
8 days
5
10 days