Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
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: 15, _ _ _ _ , 27, 27, 39, 39, . . .

Options

  1. A51
  2. B39
  3. C23
  4. D15

Correct answer

D. 15

Step-by-step solution

In this simple addition with repetition series, each number in the series repeats itself, and then increases by 12 to arrive at the next number.

Practice Series Completion on Quantrex Academy →

More from Series Completion

Paragraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the paParagraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the paParagraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the paParagraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the paParagraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the paParagraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the paScenario: In a pattern, you observe the sequence: 2,4,8,16 , _ _ _ _ . What is the next number?Paragraph: Start off with these simple series of numbers. Number series questions measure your ability to reason without words. To answer these questions, you must determine the pa Full Series Completion list All English and Logical Reasoning Prep Guide PYQs