New Click here to Enroll for SIDBI MSME Expert Classes by Experts

    Register

    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  + 2 + x  + 4 + x  + 6 + x  + 8 + x  + 10 = 78 ⇒ 6  x + 30 = 78 ⇒ 6  x = 78 – 30 ⇒   6  x = 48 ⇒    x = 8 Sum of the squares of the numbers = 8² + 10² + 12² + 14² + 16² + 18² = 1084

    Practice Next