Ram, Shyam, and Rohan working together then they can complete the work in 90 days. Find in how many days Rohan and Shyam can complete the 44.44% of work if the efficiency of ram is 20% more than Shyam and efficiency of Rohan is 16.66% less than ram.
1
75
2
16
3
64
4
67
5
None