In a certain code GONE is written as '5139' and NODAL is written as '31268'. How is LODGE written in that code language?

Appeared in: DHS 2018 shift 1st

Explanation

The problem uses a direct substitution cipher, where each letter corresponds to a specific digit.
From 'GONE' = 5139, we deduce G=5, O=1, N=3, E=9.
From 'NODAL' = 31268, we deduce N=3, O=1, D=2, A=6, L=8.
The codes for 'N' (3) and 'O' (1) are consistent across both examples, confirming the pattern.
Using these established codes, 'LODGE' is formed by combining the digits for each letter: L(8), O(1), D(2), G(5), E(9), resulting in 81259.

Option B: This option incorrectly codes 'O' as 4. Based on the given examples ('GONE' and 'NODAL'), the code for 'O' is 1.
Option C: This option incorrectly codes 'O' as 2 and 'D' as 4. The correct codes are O=1 and D=2.
Option D: This option incorrectly codes 'G' as 6. From the word 'GONE', the code for 'G' is established as 5.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning: Direct Substitution Coding as background academic context rather than a clinical decision trigger.
This type of question does not have direct clinical relevance but assesses logical reasoning and pattern recognition skills.
These cognitive skills are crucial for nurses in clinical problem-solving, interpreting data, and making sound judgments under pressure.
What if? If the code for 'N' was different in 'GONE' and 'NODAL', it would imply a positional or more complex cipher, requiring a different method of decryption rather than direct substitution.

How to Approach the Question

First, analyze the given coded words ('GONE' and 'NODAL') to identify the relationship between letters and numbers.
Create a list or table mapping each letter to its corresponding number based on the examples.
Check for consistency. If a letter appears in both examples (like 'O' and 'N'), verify that it has the same code in both instances. This confirms it's a simple substitution cipher.
Once the code for each required letter is known, apply this mapping to the target word ('LODGE').
Construct the final number sequence by arranging the codes in the correct order.
Compare your result with the given options to find the correct answer.

Concept Tested & Keywords

QjBtUxAMwW7okEeWqcbLiR

Practise the full DHS 2018 shift 1st

Attempt every question from this paper in a timed mock, then review the full solution for each one.