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English and Logical Reasoning Prep GuideLogical ReasoningSeries Completion

Paragraph: This set contains additional number series questions, some of which are in Roman numerals. These items differ from Sets 1,2 , and 3 because they ask you to find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters; for these questions, look for a number series and a letter series. Question: Look at this series: 72, 76, 73, 77, 74, _ _ _ _ , 75, .

Options

  1. A70
  2. B71
  3. C75
  4. D78

Correct answer

D. 78

Step-by-step solution

This series alternates the addition of 4 with the subtraction of 3.

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