With only the small valve open, all of the liquid can be drained from a large vat in 4 hours. With only the large valve open, all of the liquid can be drained in 2 hours. How long would it take to drain the vat with both valves open?© BrainMass Inc. brainmass.com October 7, 2022, 8:41 am ad1c9bdddf
Let x be the amount of liquid in the vat.
The small valve drains all of the liquid in 4 hours; therefor the rate of flow from the small valve is x/4 per ...
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