New RBI Grade B Notification Out - 94 Vacancies - Prepare with Us!

    Register

    Question

    Average of four numbers is 27. Sum of smallest and largest number is 56. If difference between other two numbers is 2, then find the square of second smaller number.

    A 484 Correct Answer Incorrect Answer
    B 625 Correct Answer Incorrect Answer
    C 361 Correct Answer Incorrect Answer
    D 441 Correct Answer Incorrect Answer
    E 729 Correct Answer Incorrect Answer

    Solution

    Let four numbers in increasing order is a, b, c and d. => a + b + c + d = 4 x 27 = 108 => a + d = 56 => b + c = 52 According to question, => c – b = 2 => b = 25, c = 27 => b² = 625

    Practice Next