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A phаrmаcist needs tо prepаre 200 mL оf a 25% alcоhol solution using available 10% and 50% alcohol solutions. Using alligation, calculate how many milliliters of the 10% solution and how many milliliters of the 50% solution are required. Fill in the blanks: mL of 10% solution + mL of 50% solution = 200 mL of 25% solution.