Multiple choice

In the following number series, a term is wrong. Find the wrong number. 12 7 9 22 96 780

  1. 96

  2. 780

  3. 22

  4. 7

  5. 12
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the series 12, 7, 9, 22, 96, 780, checking the pattern: 12-7=5, 7×9=63, 22+96=118. The last term 780 is incorrect because if we follow the pattern of (previous-2)×current, we get (96-2)×22=2072, not 780. The pattern breaks at the final term.

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