BANK Rajasthan Cooperative Board Clerk / Junior Assistant Mock Test 2021 Quantitative Aptitude Time and Work Pipe and Cistern
A pipe can fill a tank in 6 hours. After half the tank is filled, three more similar pipes are opened. What is the total time taken to fill the tank completely?
1
6 hours
2
2 hours 25 minutes
3
4 hours 25 minutes
4
3 hours 45 minutes
5
None of these