Multiple choice

Find the wrong term in the following number series. $18 10 11 23 93 748$

  1. 18

  2. 748

  3. 23

  4. 93

  5. 10
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The pattern is x(n+1) = x(n) × (x(n-1) - 8). Checking: 18×(previous term-8)... but we don't have previous. Let's try: 18-8=10, 10-8≠11. Another pattern: x(n+1) = x(n) × (x(n)-1) - x(n-1)². The last term 748 breaks the multiplication-based pattern used earlier in the series.

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