Multiple choice

In each of these questions a number series is given. In each series only one number is wrong. Find out the wrong number. 19, 22, 32, 46, 73, 108, 158

  1. 22

  2. 46

  3. 73

  4. 19

  5. 158
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The second differences from 22 onward are: 46-32=14, 73-46=27, 108-73=35, 158-108=50. The pattern 14, 27, 35, 50 doesn't follow a clear sequence. Testing if 19 should be 21 (giving +11, +15, +20, +28, +38, +50 where differences increase by 4, 5, 8, 10, 12) creates a coherent acceleration pattern. 19 is indeed the wrong starting term.

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