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Number series of k times consecutive squares: missing term

This type of question, asked 3 times: 6 Mar 2023 Tier II, 7 Mar 2023 Tier II, 18 Jan 2026 Tier II. All 3 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    6 Mar 2023 Tier II

    38
    Select the number from among the given options that can replace the question mark (?) in the following series. 48, 75, 108, ?, 192

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  2. Question 2

    7 Mar 2023 Tier II

    46
    Select the number from among the given options that can replace the question mark (?) in the following series. 242, 288, ?, 392, 450

    Tap an option to check your answer.

  3. Question 3

    18 Jan 2026 Tier II

    44
    The following series of numbers is given. One number is missing. Study the pattern and find the missing number. 8, 32, 72, 128, ?

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