Multiple choice

A 20-liter mixture contains 10% water anda 30-liter mixture contains 20% water. If mixed,what is the final percentage of water?

  1. A.14%

  2. B.15%

  3. C.16%

  4. D.18%

  5. E.20%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The first mixture contains 20 x 10% = 2 liters of water, and the second contains 30 x 20% = 6 liters. The combined 8 liters of water in 50 liters of mixture gives 8/50 x 100 = 16%.

AI explanation

The first mixture contains 10% of 20 liters, which is 2 liters of water. The second mixture contains 20% of 30 liters, which is 6 liters of water, giving a total water volume of 8 liters in a combined mixture of 50 liters. The final percentage of water is (8 / 50) * 100 = 16%.

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