Calculate the volume of 50% solution required to prepare 50 ml of 30%, 20% and 10% working solution

The question I was asked was "Calculate the volume(s) of 50% solution required to prepare 50 mL of 30%, 20% and 10% working solutions. Show all calculations." but I have no idea how. the title of the subject is "Solution Preparation and Measurement of Brix in samples"
Kalieapap
Asked Jul 30, 2014

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