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A solution contains 25% alcohol. If 200 ml of the solution is taken, how much al

Practice Questions

Q1
A solution contains 25% alcohol. If 200 ml of the solution is taken, how much alcohol is present in it?
  1. 50 ml
  2. 25 ml
  3. 75 ml
  4. 100 ml

Questions & Step-by-Step Solutions

A solution contains 25% alcohol. If 200 ml of the solution is taken, how much alcohol is present in it?
  • Step 1: Understand that 25% means 25 out of every 100 parts.
  • Step 2: We have a total of 200 ml of solution.
  • Step 3: To find out how much alcohol is in 200 ml, we need to calculate 25% of 200 ml.
  • Step 4: Convert 25% to a decimal. 25% as a decimal is 0.25.
  • Step 5: Multiply the decimal (0.25) by the total volume (200 ml).
  • Step 6: Calculate 0.25 * 200 = 50 ml.
  • Step 7: Therefore, there are 50 ml of alcohol in the 200 ml solution.
  • Percentage Calculation – Understanding how to calculate a percentage of a given quantity.
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