Question 9034 of 234 · California Wastewater Operator Exam

A 50 gram wet sludge sample leaves 2.5 grams of dry solids after drying. What is the percent solids?

Exactly one answer is correct.

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Correct answer to question 9034

  • B: 5%

Explanation

Percent solids = dry weight / wet weight x 100 = 2.5 / 50 x 100 = 5%. Dividing the other way gives 20.

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