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

    Question

    A vessel contains 300 litres of milk. Each time, x

    litres of the mixture are replaced with water, and this is done three times. If finally the vessel has 97.65 litres of water, calculate x.
    A 50 Correct Answer Incorrect Answer
    B 70 Correct Answer Incorrect Answer
    C 60 Correct Answer Incorrect Answer
    D 90 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    300 × (1 – x/300)³ = 300 – 97.65 300 × ((300 – x)/300)³ = 202.35 ((300 – x)/300)³ = 202.35/300 ((300 – x)/300)³ = 673/1000 ((300 – x)/300)³ = (0.88)³ (300 – x) = 0.88 × 300 300 – x = 264 x = 36

    Practice Next
    More Mixture Questions
    ask-question