In one of the industrial zones, sewage is treated to produce usable fertilizers and arable water by removing polluting materials from it. If you know that 12% of polluting materials are removed in one hour. A- What is the percentage of sewage water that can be treated in one day? (Calculate 24 working hours today) B-How many hours does it take to treat 10% of the sewage? C- How many hours does it take to treat half of the sewage water? 0.36 älue.

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