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

    Question

    Three of the following four number-clusters are alike in

    a certain way and thus form a group. Which is the one that does not belong to that group?
    A 547 Correct Answer Incorrect Answer
    B 658 Correct Answer Incorrect Answer
    C 769 Correct Answer Incorrect Answer
    D 435 Correct Answer Incorrect Answer

    Solution

    The logic here is: (1st digit – 1) = 2nd digit; (2nd digit + 3) = 3rd digit   547 →   (5 – 1) = 4; (4 + 3) = 7 658 →  (6 – 1) = 5; (5 + 3) = 8 769 →  (7 – 1) = 6; (6 + 3) = 9 435 →  (4 – 1) = 3; (3 + 3) = 6 ≠ 5   Thus, the odd one out is 435. Hence, the correct answer is (D).

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