Multiple choice

Directions: In the following number series only one number is wrong. Find out the wrong number. 12, 18, 26.25, 40.5, 60.75, 91.125, 136.6875

  1. 26.25

  2. 18

  3. 136.6875

  4. 60.75

  5. None of these
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A Correct answer
Explanation

The series follows a pattern of multiplying by 1.5: 12 * 1.5 = 18; 18 * 1.5 = 27; 27 * 1.5 = 40.5; 40.5 * 1.5 = 60.75. The value 26.25 is incorrect; it should be 27.

AI explanation

The series follows a pattern where each term is multiplied by 1.5 to obtain the next term. Multiplying 12 by 1.5 gives 18, and multiplying 18 by 1.5 gives 27. Applying this multiplier to 27 results in 40.5, then 60.75, followed by 91.125 and finally 136.6875. The number 26.25 is the incorrect term.

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