ArithmeticQuestion 348 of 550

20 litres of a solution with 30% sugar are mixed with 30 litres of water. What is the sugar concentration of the mixture?

  1. 15%
  2. 12%
  3. 10%
  4. 30%
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Correct answer: 12%

Sugar = 20 × 0.3 = 6 litres. Total volume = 50 litres. Concentration = 6 ÷ 50 × 100 = 12%.

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Questions last reviewed: 21 October 2026