šŸ“¢ Too many exams? Donā€™t know which one suits you best? Book Your Free Expert šŸ‘‰ call Now!

    Question

    The sum of five consecutive even numbers is 30.

    What is the sum of the squares of these numbers?
    A 200 Correct Answer Incorrect Answer
    B 220 Correct Answer Incorrect Answer
    C 250 Correct Answer Incorrect Answer
    D 280 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the first number be x. [if gte msEquation 12]>āˆ“ [if !msEquation]--> [endif]-->`:.` x + x + 2 + x + 4 + x + 6 + x+ 8 = 30 ⇒ 5x + 20 = 30 ⇒ 5x = 30 – 20 ⇒ 5x = 10 [if gte msEquation 12]>āˆ“ [if !msEquation]--> [endif]--> x = 2 Sum of the squares of the numbers = 2² + 4² + 6² + 8² + 10²= 220

    Practice Next
    More No. System Questions

    Relevant for Exams:

    ask-question