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

    Question

    The average weight of x persons

    is 33 kg. The average weight of (xтИТ16) women is 45 kg, the average weight of (xтИТ30) children is 40 kg, and the average weight of (xтИТ35) men is 40 kg. Find the value of x, given that the total number of persons is the sum of men, women, and children.
    A 40 Correct Answer Incorrect Answer
    B 32.5 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 36 Correct Answer Incorrect Answer
    E 27.5 Correct Answer Incorrect Answer

    Solution

    ATQ, Total weight of x persons = 35 ├Ч x = 35x kg Total weight of (x - 16) women = 45 ├Ч (x -16) = 45x - 720 kg Total weight of (x - 30) children = 40 ├Ч (x - 30) = 40x - 1200 kg Total weight of (x - 33) men = 40 ├Ч (x - 33) = 40x - 1320 kg According to the question, 35x = 45x - 720 + 40x - 1200 + 40x - 1320 35x = 125x - 3240 90x = 3240 x = 36

    Practice Next
    More Average Questions

    Relevant for Exams:

    ask-question