PYQ Vault

Number series: differences are perfect squares or cubes

This type of question, asked 5 times: 20 Jul 2023 S4, 27 Jul 2023 S3, 10 Sep 2024 S1, 13 Sep 2024 S3, 26 Sep 2025 S2. All 5 questions below, oldest first.

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  1. Question 1

    20 Jul 2023 S4

    21
    Which number would replace the question mark (?) in the following number series? 131, 132, 141, 166, 215, ?, 417

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  2. Question 2

    27 Jul 2023 S3

    13
    Which of the following numbers will replace the question mark (?) in the given series? 11, 36, ?, 121, 185, 266

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  3. Question 3

    10 Sep 2024 S1

    24
    Select the number from among the given options that can replace the question mark (?) in the following series. 23, 27, 43, 79, 143, ?

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  4. Question 4

    13 Sep 2024 S3

    14
    Which of the following numbers will replace the question mark (?) in the given series? 22, 23, 27, 54, 70, 195, ?

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  5. Question 5

    26 Sep 2025 S2

    3
    What should come in place of the question mark '?' in the following number series? 76, 80, 71, 87, 62, ?

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