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A mixture contains 30% alcohol and 70% water. If 20 liters of the mixture is tak

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Question: A mixture contains 30% alcohol and 70% water. If 20 liters of the mixture is taken, how much alcohol is in it?

Options:

  1. 4 liters
  2. 6 liters
  3. 8 liters
  4. 10 liters

Correct Answer: 8 liters

Solution: 

30% of 20 liters = 0.30 * 20 = 6 liters of alcohol.

A mixture contains 30% alcohol and 70% water. If 20 liters of the mixture is tak

Practice Questions

Q1
A mixture contains 30% alcohol and 70% water. If 20 liters of the mixture is taken, how much alcohol is in it?
  1. 4 liters
  2. 6 liters
  3. 8 liters
  4. 10 liters

Questions & Step-by-Step Solutions

A mixture contains 30% alcohol and 70% water. If 20 liters of the mixture is taken, how much alcohol is in it?
  • Step 1: Understand that the mixture is made up of 30% alcohol and 70% water.
  • Step 2: Know that you are taking 20 liters of this mixture.
  • Step 3: To find out how much alcohol is in the 20 liters, calculate 30% of 20 liters.
  • Step 4: Convert 30% to a decimal, which is 0.30.
  • Step 5: Multiply 0.30 by 20 liters: 0.30 * 20 = 6 liters.
  • Step 6: Conclude that there are 6 liters of alcohol in the 20 liters of mixture.
  • Percentage Calculation – Understanding how to calculate a percentage of a total quantity.
  • Mixture Composition – Recognizing the components of a mixture and their respective proportions.
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