Multiple choice

Directions: Find the wrong term in the series. 276, 140, 68, 38, 16, 10, 3

  1. 68

  2. 38

  3. 16

  4. 10
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B Correct answer
Explanation

The pattern is: 276/2 + 2 = 140; 140/2 - 2 = 68; 68/2 + 2 = 36 (not 38); 36/2 - 2 = 16; 16/2 + 2 = 10; 10/2 - 2 = 3. The term 38 is incorrect.

AI explanation

Subtract the terms from their preceding terms to get 136, 72, 30, 22, 6, and 7, which does not reveal an obvious pattern. The actual pattern involves dividing by 2 and subtracting consecutive integers: 276 / 2 - 2 = 136, 140 / 2 - 2 = 68, 68 / 2 - 2 = 32, 32 / 2 - 2 = 14, 16 / 2 - 2 = 6, and 10 / 2 - 2 = 3. Following this consistent division and subtraction logic, the term 38 should actually be 32. The result is 38.

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