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

    Question

    Select the option that is related to third number

    cluster in the same way second number cluster is related to first number cluster. 12 : 9 :: 13 : ?
    A 18 Correct Answer Incorrect Answer
    B 22 Correct Answer Incorrect Answer
    C 12 Correct Answer Incorrect Answer
    D 16 Correct Answer Incorrect Answer

    Solution

    The logic followed here is as follows: The second number is the sum of all the digits of the square of first number. 12 → 12 × 12 = 144 → [1 + 4 + 4] = 9
    Similarly, in 13 → 13 × 13 = 169 → [1 + 6 + 9] = 16

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