A can do 20% of a work in 4 days, and B can do 33\(\frac{1}{3}\)% of the same work in 10 days. They worked together for 9 days and then C completed the remaining work in 6 days. B and C together will complete 75% of the same work in:
1
12 days
2
9 days
3
11 days
4
10 days