In a certain code language, 'ECHO' is coded as '2156' and 'HOPE' is coded as '5632'. What is the code for 'P' in the given code language?

1. A

   6

2. B

   5

3. C

   1

4. D

   3

Appeared in: DSSSB 13 August 2024

Explanation

• The question requires decoding a simple substitution cipher where letters are replaced by numbers.
• By comparing the word 'HOPE' with its code '5632', we can establish a direct correspondence: H=5, O=6, P=3, and E=2.
• The letter 'P' is the third letter in the word 'HOPE'.
• The third digit in the code '5632' is '3'.
• Therefore, the code for 'P' is 3.

Why Other Options Were Wrong

• Option A: The number 6 is the code for the letter 'O'. This can be verified in both 'ECHO' (last letter, last digit) and 'HOPE' (second letter, second digit).
• Option B: The number 5 corresponds to the letter 'H'. This is confirmed in both 'ECHO' (third letter, third digit) and 'HOPE' (first letter, first digit).
• Option C: The number 1 represents the letter 'C', as seen in the word 'ECHO' where 'C' is the second letter and '1' is the second digit in the code '2156'.

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Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Letter-to-Number Coding and Decoding as background academic context rather than a clinical decision trigger.
• While not a clinical question, this type of logical reasoning is a foundational skill for nurses.
• Nurses use pattern recognition daily to interpret vital sign trends, analyze lab results, and identify subtle changes in a patient's condition.
• Strong deductive reasoning helps in prioritizing care, troubleshooting equipment alarms, and making sound clinical judgments under pressure.

How to Approach the Question

• First, carefully write down the given words and their corresponding numerical codes.
• Identify any letters that are common to both words. In this case, 'E', 'H', and 'O' appear in both 'ECHO' and 'HOPE'.
• Compare the codes for these common letters to confirm the coding pattern. For example, 'H' is the third letter in 'ECHO' (code '2156') and the first in 'HOPE' (code '5632'). In both cases, the code for 'H' is '5'.
• Once the pattern is verified, isolate the word containing the target letter, which is 'P' in the word 'HOPE'.
• Match the position of the letter 'P' in 'HOPE' (third position) with the digit in the same position in its code '5632' (third digit).
• This reveals that 'P' is coded as '3'.

Concept Tested & Keywords

• Concept Tested: Letter-to-Number Coding and Decoding
• Stem keywords: code language, ECHO, HOPE, coding, decoding
• Lead-in keywords: What is the code for
• Negative lead-in flag: false

Question ID

QwW7N9spbFcccT1Z6PFAdC

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