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Wrong term in a series whose differences grow by a fixed step (or stay constant)

This type of question, asked 5 times: 15 Sep 2025 S1, 18 Sep 2025 S2, 18 Sep 2025 S3, 19 Sep 2025 S1, 24 Sep 2025 S2. All 5 questions below, oldest first.

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  1. Question 1

    15 Sep 2025 S1

    13
    Which term is wrong in the series: 2, 5, 10, 17, 26, 36

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  2. Question 2

    18 Sep 2025 S2

    6
    Find the WRONG term in the given series. 5, 10, 15, 26, 37, 50

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  3. Question 3

    18 Sep 2025 S3

    25
    The series given below contains a sequence of numbers. Accordingly identify the incorrect combination.25 , 32 , 46 , 67 , 97

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  4. Question 4

    19 Sep 2025 S1

    6
    Find out the WRONG number in the given series. 336, 246, 166, 94, 36, -14

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  5. Question 5

    24 Sep 2025 S2

    15
    Find the INCORRECT number in the series. 3, 6, 9, 13, 15, 18

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