A can do the work in 24 days and efficiency of B is x% less than the efficiency of A. If both A and B together can complete the work in 13 (5/7) days. Then find the time taken by C to complete the work alone. The efficiency of C is (2x + 10)% of the efficiency of B.
1
140/3 days
2
150/7 days
3
160/3 days
4
150/4 days
5
154/3 days