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8th Class Mathematics Comparing Quantities Question Bank Self Test-10

  • question_answer
    Astel works in a laboratory where the various tests like blood test, urine test, are carried out and for this he needs to use some dilute alcohol. If he is provided with 800 ml of 30% of alcohol and he needs solutions containing 64% of the alcohol for the test to be performed then how much pure alcohol he needs to mixed in the given solution to make it 32%?

    A)  550 ml

    B)  4200 ml

    C)  755.6ml

    D)  528ml

    E)  None of these

    Correct Answer: C

    Solution :


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