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NIELIT 2019 Feb Scientist D - Section C: 25

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A jar full of whisky contains $40\%$ of alcohol. A part of this whisky is replaced by another containing $19\%$ alcohol and now the percentage of alcohol was found to be $26$. The quantity of whisky replaced is :

  1. $\frac{2}{5}$
  2. $\frac{1}{3}$
  3. $\frac{2}{3}$
  4. $\frac{3}{5}$

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