Multiple choice

In the following number series only one number is wrong. Find out the wrong number ? 5, 55, 495, 3465, 17325, 34650

  1. 495

  2. 34650

  3. 55

  4. 17325

  5. 3465

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

Analyze the pattern: 5→55 (×11), 55→495 (×9), 495→3465 (×7), 3465→17325 (×5). The multipliers decrease by 2 each time: 11, 9, 7, 5. Following this pattern, the next multiplier should be 3: 17325×3=51975, not 34650. So 34650 is wrong. The correct series should continue with ×3, then ×1.