Multiple choice general knowledge

20 10 22 9 24 8 26............

  1. 7

  2. 5

  3. 21

  4. 28
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern is: subtract 10, add 12, subtract 13, add 15, subtract 16, add 18. The subtractions increase by 3 each time (10, 13, 16, 19). The additions increase by 3 each time (12, 15, 18). After adding 18 to get 26, the next operation is subtract 19, giving 26-19=7.

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