Multiple choice

Find the wrong number in the following number series. $64 80 119 166 221 283$

  1. 166

  2. 283

  3. 221

  4. 80

  5. 119

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The series 64, 80, 119, 166, 221, 283 follows the pattern: +16, +39, +47, +55, +62. The differences themselves increase by 23, 8, 8, 7. The term 283 appears incorrect as it breaks the pattern. The expected sixth term following 221 would be 221+63=284, not 283.