Multiple choice

Find the wrong number in the following number series? 18, 37, 75, 132, 208, 302

  1. 208

  2. 75

  3. 37

  4. 302

  5. 132
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D Correct answer
Explanation

The differences are: 19, 38, 57, 76, 94. The pattern of second differences: 19, 19, 19, 18. The last second difference breaks the pattern - should be 19, making the last term 302+95=397, not 302. So 302 is wrong.

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