Multiple choice

Find the wrong number in the following number series- 16 34 99 388 1995

  1. 99

  2. 34

  3. 16

  4. 1995

  5. 388
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E Correct answer
Explanation

The pattern is: multiply by 2 and add 2, then multiply by 3 and subtract 3, then multiply by 4 and add 4, then multiply by 5 and subtract 5. Starting from 16: 16×2+2=34, 34×3-3=99, 99×4+4=400, 400×5-5=1995. Since 388 appears instead of 400, it is the wrong number in the series.

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