Multiple choice

Find out the wrong number in the following series. 7.5 57 295 1088 3570 7144

  1. 57

  2. 295

  3. 1088

  4. 3570

  5. 7144
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pattern is n × (odd multiplier) + (odd multiplier)²: 7.5 × 5 + 25 = 37.5 ≠ 57. Alternate pattern: ×7 + 19.5, ×5 + 10, ×3 + 203 breaks. Pattern 57 × 5 + 10 = 295, 295 × 5 + 10 = 1485 ≠ 1088. 1088 breaks the multiplicative pattern that fits other terms.

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