126 is related to 181 following a certain logic. Following the same logic, 89 is related to 144. To which of the given options is 130 related, following the same logic? (Note: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g., 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

1. A

   185

2. B

   195

3. C

   180

4. D

   190

Appeared in: RRB Nsg. Superintendent -29 April-2025 (shift-2nd)

Explanation

• The core logic is based on finding a constant difference between the pairs of numbers provided.
• For the first pair, the difference is 181 - 126 = 55.
• For the second pair, the difference is 144 - 89 = 55.
• The pattern is consistent: the second number is always 55 more than the first.
• Applying this pattern to 130 gives 130 + 55 = 185.

Why Other Options Were Wrong

• Option B: Choosing 195 would imply a difference of 65 (195 - 130), which does not match the established pattern of adding 55.
• Option C: Selecting 180 implies a difference of 50 (180 - 130). This contradicts the consistent difference of 55 found in the other pairs.
• Option D: This option gives a difference of 60 (190 - 130). It is incorrect because it deviates from the consistent logic of adding 55.

Related Visual

• Visual 1: Flowchart: A simple flowchart can illustrate the process. Start with a box for the 'Input Number'. An arrow points to a process box labeled '+ 55'. Another arrow points to the 'Output Number'. This visually reinforces the single, consistent operation.

Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain This question tests logical reasoning, specifically the ability to identify and apply a consistent mathematical pattern in a number analogy problem as background academic context rather than a clinical decision trigger.
• While not a clinical question, this type of logical reasoning is included in the General Intelligence and Reasoning section of many nursing competitive exams.
• Strong reasoning skills are essential for nurses for critical thinking, problem-solving in clinical scenarios, and interpreting data patterns (e.g., vital sign trends).
• What if the second pair was 89 and 154? The logic would change. The first difference is 55 (181-126), and the second is 65 (154-89). This suggests an increasing difference (+55, +65, ...). The next step would be to add 75, making the answer 130 + 75 = 205.

How to Approach the Question

• First, analyze the relationship between the numbers in the first given pair (126 and 181). Calculate the difference, ratio, or other mathematical operation connecting them.
• Next, verify if the same relationship holds true for the second pair (89 and 144). In this case, 181 - 126 = 55 and 144 - 89 = 55. This confirms the logic is 'add 55'.
• Apply the confirmed logic to the number in the question (130).
• Calculate the result: 130 + 55 = 185.
• Finally, select the option that matches your result.

Concept Tested & Keywords

• Concept Tested: This question tests logical reasoning, specifically the ability to identify and apply a consistent mathematical pattern in a number analogy problem.
• Stem keywords: related to, certain logic, 126, 181, 89, 144, 130
• Lead-in keywords: To which of the given options
• Negative lead-in flag: false

Question ID

QAeftQh-McNDvERNyojvFp

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