Question
Inlet pipes 'A', 'B' fill a tank in 30 and 15 minutes respectively. Outlet pipe 'C' is 50% less efficient than
Inlet pipes 'A', 'B' fill a tank in 30 and 15 minutes respectively. Outlet pipe 'C' is 50% less efficient than
A. ‘A’ and ‘C’ work for 15 minutes, then 'A' is replaced with 'B'. Find total time to fill the tank.
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