Multiple choice

In the following number series, wrong number is given. Find out that wrong number? 49 285 52 204 65 128

  1. 49

  2. 285

  3. 52

  4. 204

  5. All are correct
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A Correct answer
Explanation

The series 49, 285, 52, 204, 65, 128 follows the pattern: (odd positions) 49→52→65 (+3, +13) and (even positions) 285→204→128 (-81, -76). The pattern breaks at 49 - it should be the 4th term (82-19=63) in a single series: 82, 285, 63, 204, 82, 128. Thus 49 is the wrong number.

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