15 girls can complete the work in 8 days while 12 boys can complete the work in 10 days. There are 8 boys started the work then 4 boys and 15 girls join them to complete the work and remaining work will be completed in 8/3 days. In what time total work gets completed?
1
10.2 days
2
11.5 days
3
8.6 days
4
7.4 days
5
9.5 days