New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The circumference of a square and the circumference of a

    cube are equal. The numerical value of the total surface area of the cube is 25 times the perimeter of the square. The side length of the cube is 'y', which is the correct replacement of the wrong (odd one out) term in the following series? 3024, 756, 216, 72, 42, 14.4 Find the volume of the cube if all the dimensions of the cube and square are in centimetres.
    A 23887.872 cm³ Correct Answer Incorrect Answer
    B 28337.742 cm³ Correct Answer Incorrect Answer
    C 28189.728 cm³ Correct Answer Incorrect Answer
    D 29387.878 cm³ Correct Answer Incorrect Answer
    E 25879.872 cm³ Correct Answer Incorrect Answer

    Solution

    The given series follows the logic:   3024 ÷ 4 = 756   756 ÷ 3.5 = 216   216 ÷ 3 = 72   72 ÷ 2.5 = 28.8 (This should replace 84 as the correct sequence, adjusting the series accordingly)   28.8 ÷ 2 = 14.4   So, side length of the cube = y = 28.8 cm   So, volume of the cube = (side length)3 = 28.83 = 23887.872 cm³

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