A sludge pool is filled by two inlet pipes. One pipe can fill the pool in 10 days and the other pipe can fill it in 25 days. How
ever, if no sewage is added, waste removal will empty the pool in 39 days. How long (in days) will it take the two inlet pipes to fill an empty pool?
1 answer:
Answer:
35 days because waste removals will empty the pool in 39 days
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