Abhi can complete a work in 50 days. Varun is 25% more efficient than Abhi. They work together for 8 days. The remaining work is completed by Charu alone in 6\(\frac{2}{5}\)days then in how many days can Varun and Charu complete 75% of the original work?
1
5\(\frac{1}{2}\)
2
7
3
6
4
7\(\frac{1}{2}\)