Correct option is C
Given:
A can complete the work in 4 days.
B can complete the work in 46 days.
Formula Used:
Time = Rate of A+Rate of B1
Solution:
Rate of A = 41 (since A completes the work in 4 days)
Rate of B = 461 (since B completes the work in 46 days)
Time = Time=41+4611
41+461=4×4646+4=18450
Time = 184501=50184 = 3.68 days
Thus, 3.6 days
Alternate Method:
Total Work = 92
Total Efficiency = 23+2 = 25
Total time = 2592=3.6 Days