Multiple choice

1 litre of water is added to 5 litres of mixture having 20% alcohol in it. What is the quantity of alcohol in the new mixture?

  1. 50%

  2. 25%

  3. 12%

  4. 50/3%

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

(Alcohol is 20% of 5 litres, i. e. one litre. When 1 litre water is added, mixture becomes 6 litres, in which alcohol is 1 litre. Therefore, strength of alcohol = 1/6 X 100% = 50/3%)

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