Multiple Choice Questions on A chemist has 10L of a solution that is 10 nitric acid by volume He wants to dilute the solution to ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A chemist has 10L of a solution that is 10 nitric acid by volume He wants to dilute the solution to ...........

Quantitative Aptitude ( CCS) Mixture and Alligation
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    A chemist has 10L of a solution that is 10% nitric acid by volume. He wants to dilute the solution to 4% strength by adding water. How many litres of water must be add?

    40L

    Incorrect Answer

    33 L

    Incorrect Answer

    25L

    Incorrect Answer

    15 L

    Correct Answer
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    Explanation:

    Quantity of nitric acid = 10 *(1/10) = 1 L
    Water = 10 – 1 = 9 L
    Let x litre of water be added,
    (10 + x ) * (4/100) = 1
    => x = 15 L

    Hence, option 4 is the correct answer.

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