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CTET Maths - Ratio Proportion and Mixture

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1. Two jars of capacity 3 and 5 litres are filled with mixtures of alcohol and water. In the smaller jar 25% of the mixture is alcohol and in the larger 25% of the mixture is water. The jars are emptied into a 9-litre cask and remaining volume is filled up with water. Then the percentage of alcohol in the cask will be

  • Option : A
  • Explanation :

    Alcohol content in 1st jar = 0.25 x 3 = 0.75 litre
    Alcohol content in 2nd jar = 0.75 x 5 = 3.75 litres
    Total alcohol in 9 litre cask = 0.75 + 3.75 = 4.5 litres
    Percentage of alcohol in the cask = 4.5/9 x 100 = 50%

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