Multiple Choice Questions on 70 litres of a mixture of solutions A and B contains 20 of solution A If 20 litres of solution........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

70 litres of a mixture of solutions A and B contains 20 of solution A If 20 litres of solution...........

Quantitative Aptitude ( CCS) Mixture and Alligation
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     70 litres of a mixture of solutions A and B contains 20% of solution A. If 20 litres of solution B is added to the mixture, what is the concentration of B in the mixture now?

    0.7945

    Incorrect Answer

    0.8143

    Incorrect Answer

    84.44%

    Correct Answer

    75.65%

    Incorrect Answer
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    Explanation:

    Initially, in 70 litre of mixture,

    A = 70*20% = 14 litre and B = 70 - 14 = 56 litre.

    Now 20 litre of B is added. 

    Concenteration of B in the New Mixture = (Latest Quantity of B)/(Total Quantity of the Mixture) * 100%

    = 76/90 * 100% = 84.44%

    By: Deepak Dawra
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