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Multiple choice

Which one number/letter is wrong in the given series: 88, 89, 180, 541, 2176

  1. 88

  2. 180

  3. 541

  4. 2176

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pattern is: aₙ₊₁ = aₙ×(n+1) + (n+1). So 88×1+1=89, 89×2+2=180, 180×3+3=543, 543×4+4=2176. The number 541 breaks this—it should be 543.

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