A can do a piece of work alone in 96 days and B can do it alone in 104 days. In how many days can the duo, working together, complete the work?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 49.92
Calculations:
Total work (LCM of 96 and 104) = 1248 units
Efficiency of A = 1248/96 = 13
Efficiency of B = 1248/104 = 12
Total efficiency = 13 + 12 = 25
Required time = 1248/25 = 49.92 days