Multiple choice

In the following question one term in the number series is wrong. Find out the wrong term. 8, 14, 26, 48, 98, 194, 386

  1. 14

  2. 48

  3. 98

  4. 194
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B Correct answer
Explanation

Pattern: 8*2-2=14, 14*2-2=26, 26*2-4=48 (should be 26*2-2=50), 50*2-2=98. The term 48 is incorrect.

AI explanation

The pattern follows a rule of multiplying by 2 and then subtracting or adding an increasing even integer. Starting with 8, we have 8 x 2 - 2 = 14, 14 x 2 - 2 = 26, and 26 x 2 - 4 = 48. To continue the alternating operations correctly, it should be 26 x 2 - 2 = 50 instead of 48. Therefore, 48 is the wrong term in the series.

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