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Question

Aptitude:

15 litres of a mixture contains 20% alcohol and the rest is water. If 3 litres of water is mixed in it find the percentage of alcohol in the new mixture?

  • 15 %
  • 17 %
  • 16 2/3 %
  • 18 1/2 %
  • None of these
Answer- C

The mixture contains 3 litres of alcohol and 12 litres of water. After addition of 3 litres of water, the mixture contains 3 litres of alcohol and 15 litres of water.

Percentage of alcohol = (3/18 *100) %

= 16 2/3 %


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