Multiple choice

Identify the wrong digit in the given number series :4, 2, 3.5, 7.5, 26.25, 118.125

  1. 4

  2. 3.5

  3. 26.25

  4. 118.25

  5. 2
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B Correct answer
AI explanation

The pattern alternates between multiplying by 0.5 and multiplying by 1.5 to get the subsequent terms. Applying this, 4x0.5 = 2, and then 2x1.5 should equal 3; therefore, the number 3.5 is the incorrect term in the sequence. If the correct number 3 were used, the following terms would proceed properly as 3x2.5 = 7.5 and 7.5x3.5 = 26.25.

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