Question
There are two inlet pipes 'A', 'B' and one outlet pipe 'C' in a tank. ‘A’ and ‘B’ can fill the tank in 24 minutes and 16 minutes respectively. ‘C’ is 50% less efficient than ‘A’. If ‘A’ and ‘C’ are open together but after 12 minutes ‘A’ is replaced with ‘B’, then find the total time required to fill the tank completely.
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