Refer to the following number, symbol series and answer the question given below. Counting should be done left to right only. (Left) 6 @ 17 & 8 # * 153 D # 2 @ 3 D 14 (Right). How many such symbols are there each of which is immediately preceded by a number and also immediately followed by another number?

1. A

   None

2. B

   More than two

3. C

   One

4. D

   Two

Appeared in: DSSSB October 2024

Explanation

• The question asks to find the number of symbols that have a number immediately before and immediately after them.
• The pattern to identify is: Number-Symbol-Number.
• Scanning the series 6 @ 17 & 8 # * 153 D # 2 @ 3 D 14 reveals four such patterns: 6 @ 17, 17 & 8, 2 @ 3, and 3 D 14.
• The total count is 4.
• Since 4 is greater than 2, the correct option is 'More than two'.

Why Other Options Were Wrong

• Option A: This is incorrect because there are four instances of the specified pattern found in the series.
• Option C: This is incorrect. While there is at least one instance, the total count is four, not one.
• Option D: This is incorrect. The total count of the pattern is four, which is more than two.

Related Visual

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning: Pattern Recognition in a Series as background academic context rather than a clinical decision trigger.
• This is a logical reasoning question designed to assess analytical and pattern-recognition skills, which are part of the aptitude section of nursing exams.
• While not directly clinical, these skills are foundational for nurses who must interpret patterns in patient data, such as vital sign trends, lab results, and ECG strips, to make sound clinical judgments.
• What if the question asked for a symbol preceded by a number and followed by a letter? The pattern would be Number-Symbol-Letter. In the series ...153 D #..., 'D' is a letter, not a symbol in this context, so no instance would match. However, if the question defined letters as symbols, 153 D # would still not match as '#' is a symbol, not a letter.

How to Approach the Question

• First, carefully read the question to understand the exact pattern you need to find. Here, it's [Number] [Symbol] [Number].
• Define what constitutes a 'number' and a 'symbol' in the context of the series. Letters like 'D' are typically treated as symbols in these types of questions.
• Systematically scan the series from left to right, checking each symbol to see if it fits the condition.
• Keep a running count of every time the pattern is successfully identified.
• Once you have scanned the entire series, compare your final count to the given options.
• Select the option that accurately reflects your count. In this case, the count is 4, which corresponds to 'More than two'.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning: Pattern Recognition in a Series
• Stem keywords: number, symbol series, immediately preceded, immediately followed
• Lead-in keywords: How many

Question ID

Q1eL9KDL44PL8anvLjIqwe

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