state gov DSSSB Warder, Assistant Superintendent, Matron Mock Test 2024 Quantitative Aptitude Time and Work Pipe and Cistern
A tap can fill a cistern in 8 hours. After half the tank is full, four more identical taps of the same type are opened. What is the total time taken to fill the tank completely?
1
4 hours 46 minutes
2
4 hours 48 minutes
3
4 hours 38 minutes
4
4 hours 30 minutes