ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    Question

    A quantity p is directly proportional to quantity q.

    When p = 63, then q = 21. When q = 35, then find the value of p.
    A 80 Correct Answer Incorrect Answer
    B 105 Correct Answer Incorrect Answer
    C 100 Correct Answer Incorrect Answer
    D 120 Correct Answer Incorrect Answer

    Solution

    p тИЭ q, which means, when 'p' increases then 'q' will also increase and when 'p' decreases then 'q' will also decrease. So, Let, p = k X q (where, 'k' is a proportionality constant) ATQ,
    63 = k X 21 So, k = (63/21) = 3 When 'q' = 35, then,
    p = 3 X 35 = 105

    Practice Next
    More Ratio and proportion Questions
    ask-question