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

    Question

    The sum of six consecutive even numbers is 78. What is

    the sum of the squares of these numbers?
    A 1084 Correct Answer Incorrect Answer
    B 1060 Correct Answer Incorrect Answer
    C 1020 Correct Answer Incorrect Answer
    D 1050 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the first number be x x + x ┬а+ 2 + x ┬а+ 4 + x ┬а+ 6 + x ┬а+ 8 + x ┬а+ 10 = 78 тЗТ 6 ┬аx + 30 = 78 тЗТ 6 ┬аx = 78 тАУ 30 тЗТ ┬а 6 ┬аx = 48 тЗТ ┬а┬а x = 8 Sum of the squares of the numbers = 8┬▓ + 10┬▓ + 12┬▓ + 14┬▓ + 16┬▓ + 18┬▓ = 1084

    Practice Next
    More Quadratic equation Questions
    ask-question