A can complete 25% of a work in 7 days, while B can complete 2/7 of the same work in 12 days. A and B start working together and continue for 12 days....
Question
A can complete 25% of a work in 7 days, while B can complete 2/7 of the same work in 12 days. A and B start working together and continue for 12 days. After that, both are replaced by C, who finishes the remaining work in 3 days. In how many days can C complete the entire work alone?