📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    Question

    The question consists of two statements numbered "I and

    II" given below it. You have to decide whether the data provided in the statements are suicient to answer the question. A mixture consists of 25 litres of water and 'n' litres of honey. Determine the total volume of the mixture. Statement I: After adding (n - 50) litres of water to the mixture, the ratio of honey to water becomes 3:2. Statement II: After removing 20 litres from the mixture, the amount of honey left is 60 litres.
    A The data given in both statements I and II together is not sufficient to answer the question. Correct Answer Incorrect Answer
    B The data in both statements I and II together is necessary to answer the question. Correct Answer Incorrect Answer
    C The data in statement I alone are sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question. Correct Answer Incorrect Answer
    D The data in statement II alone are sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question. Correct Answer Incorrect Answer
    E The data either in statement I alone or in statement II alone is sufficient to answer the question. Correct Answer Incorrect Answer

    Solution

    ATQ,

    Total volume of the mixture = (n + 25) litres Statement I: (25 + n - 50) : n = 2 : 3 => 3 × (n - 25) = 2n => 3n - 75 = 2n => n = 75 Total volume of the mixture = 75 + 25 = 100 litres Hence, Statement I alone provides enough data to answer the question. Statement II: Initial ratio of milk to the total mixture = n / (n + 25) After removing 20 litres of mixture: Remaining volume = n + 5 litres Remaining quantity of milk = 60 litres New milk ratio = 60 / (n + 5) So, n / (n + 25) = 60 / (n + 5) ⇒ 60n + 1500 = n² + 5n ⇒ n² - 55n - 1500 = 0 ⇒ n² + 20n - 75n - 1500 = 0 ⇒ n(n + 20) - 75(n + 20) = 0 ⇒ (n - 75)(n + 20) = 0 So, n = 75 (since n cannot be negative) Total volume = 75 + 25 = 100 litres Thus, Statement II alone is also sufficient. Final Conclusion: Either Statement I alone or Statement II alone is sufficient to determine the total quantity of the mixture.

    Practice Next
    More Data Sufficiency Questions

    Relevant for Exams:

    ask-question