Multiple choice

In the following number-series, one number is wrong. Find the wrong number: 4 5 15 49 201 1011

  1. 5

  2. 15

  3. 49

  4. 201

  5. 1011
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A Correct answer
Explanation

The pattern is: (n-1) + factorial or similar. 4 should be followed by 4 + 2 = 6 (not 5). The pattern appears to be adding incrementing factorials or consecutive numbers. If we check: 4, 4+1=5, 5+10=15, 15+34=49... The issue is at 5. The correct series should start 4, 6, 15... making 5 the wrong number.

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