Multiple choice

In each of the following number-series only one number is wrong. Find out that wrong number. 10 16 48 318 4864 154624

  1. 10

  2. 48

  3. 4864

  4. 16

  5. 320
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The pattern is: multiply previous term by its position and add the result to the term itself. 10×1+10=20 (missing, should be 20 not 16), 20×2+20=60, 60×3+60=240, 240×4+240=1200, 1200×5+1200=7200. Option E (320) fits as 16×2+16=48, confirming 16 breaks the pattern.

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