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

    Question

    The average of ten numbers is 80. When five more numbers

    are included, the average increases by 4. Find the average of the numbers included.
    A 90 Correct Answer Incorrect Answer
    B 91 Correct Answer Incorrect Answer
    C 92 Correct Answer Incorrect Answer
    D 93 Correct Answer Incorrect Answer

    Solution

    Sum of the 10 numbers = 80 ├Ч 10 = 800
    New average = 80 + 4 = 84
    Sum of 15 numbers = 84 ├Ч 15 = 1260
    Sum of new 5 numbers = 1260 - 800 = 460
    Required average = 460 ├╖ 5 = 92

    Practice Next
    More Average Questions
    ask-question