Multiple choice

In the following number-series one number is wrong. Find out that wrong number. 17 16 40 93 438 2055

  1. 438

  2. 2055

  3. 16

  4. 93

  5. 40
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A Correct answer
Explanation

This series follows a pattern involving cubes: each term is derived from the previous term through multiplication by an increasing factor and adding/subtracting values related to cubes. The pattern is: ×1 - 1³, ×2 - 2³, ×3 - 3³, ×4 + 4³, ×5 - 5³. 438 breaks this pattern as it should be 445 (93 × 4 + 4³ = 372 + 64 = 436, not 438).

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