Multiple choice

In the following number series only one number is wrong. Find out the wrong number. 5, 7, 25, 131, 925, 8336

  1. 8336

  2. 925

  3. 131

  4. 25

  5. 7
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pattern is: ×1+2, ×2+11, ×3+56, ×4+741... The increments themselves follow a pattern: 2, 11, 56, 741. More likely: 5×1+2=7, 7×3+4=25, 25×5+6=131, 131×7+6=925, 925×9+6=8331. The last term 8336 doesn't fit. Checking: 5×1+2=7✓, 7×3+4=25✓, 25×5+6=131✓, 131×7+6=925✓, 925×9+6=8331 (not 8336). 8336 is the wrong number.

Keep practicing — related questions