Posted by
**anna** on
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2. A technician has prepared three solutions from a 600 mL stock solution.

• In preparing the first solution ½ of the original volume of the stock solution was used.

• The second solution required ¼ of the remaining stock solution.

• Preparation of the third solution used 3/5 of the remaining stock solution.

What fraction of stock solution remains?

Is 3/20 correct?