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

    Question

    If the third proportion of 8 and 16 is “0.5k”, then

    find the value of (k − 4) : (k + 14).
    A 10:13 Correct Answer Incorrect Answer
    B 3:4 Correct Answer Incorrect Answer
    C 7:9 Correct Answer Incorrect Answer
    D 4:5 Correct Answer Incorrect Answer

    Solution

    Third proportion of two numbers ‘a’ and ‘b’ is (b²/a).
    So, 0.5k = (16²/8) = 32
    Or, 'k' = 64
    Required value = (64 - 4) : (64 + 14) = 60 : 78 = 10 : 13

    Practice Next
    More Ratio and proportion Questions

    Relevant for Exams:

    ask-question