Introduction to Alligation Continued

You must also know how to calculate how much of different solutions of the same component you need to mix together to produce a solution of specified strength

You need to prepare 100g of a powder containing 8% Zinc Oxide. You have 2 powders available; the first contains 10% Zinc Oxide; the second contains 5% Zinc Oxide. How much of each powder do you need?

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You can solve these calculations using a method called:

ALLIGATION