state gov Maharashtra Talathi (तलाठी भरती) Mock Test 2023 Quantitative Aptitude Time and Work Work Efficiency
Pipe A can empty a filled tank in 5.6 hours while Pipe B can fill the same tank in 7 hours when it is empty. If Pipes A and B are alternately turned on for an hour each time, starting when the tank is full, how long will it take to empty the tank?
1
55 hours
2
48 hours
3
56 hours
4
47 hours