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

    Question

    Select the option that is related to the third term in the

    same way as the second term is related to first term and the sixth term is related to the fifth term. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g., 13 - Operations on 13 such as adding/ subtracting/ multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed) 12: 1331 :: 16: ? :: 14: 2197
    A 576 Correct Answer Incorrect Answer
    B 512 Correct Answer Incorrect Answer
    C 256 Correct Answer Incorrect Answer
    D 526 Correct Answer Incorrect Answer

    Solution

    The logic followed here is: The 2nd number is cube of the immediately preceding number of the 1st number, i.e., if AB:CD, then CD = (AB - 1)³.

    '12 : 1331' = (12 - 1)³ = 11³ = 1331

    '14 : 1331' = (14 - 1)³ = 13³ = 2197

    '9 : 1331' = (9 - 1)³ = 8³ = 512.

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