Multiple choice

Find Wrong Number in Given Series 10, 22, 35, 50, 68, 92, 117

  1. 92

  2. 117

  3. 10

  4. 22

  5. 35
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Differences: 22-10=12, 35-22=13, 50-35=15, 68-50=18, 92-68=24, 117-92=25. The differences are 12, 13, 15, 18, 22, 25. The pattern of differences is +1, +2, +3, +4, +5. 12+1=13, 13+2=15, 15+3=18, 18+4=22. So 92 should be 68+22=90. Then 117-90=27, which fits the +5 pattern.

AI explanation

The differences between the consecutive terms are based on multiples of 3. The differences should start at 12, then increase by 3 each time, giving 12, 15, 18, 21, 24, and 27. Adding these differences sequentially means the term after 68 should be 68 plus 21, which equals 89. Therefore, 92 is the incorrect number.

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