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How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?
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Aconstruction crew was made up of 88 men and the rest women. if 40% of the crew were men, how many people were in the crew?
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Motor vehicle crashes are the number one cause of work-related fatalities in the united states. ) a...
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