Understanding Coding-Decoding Questions

This type of problem involves deciphering a code language based on given sentences and their corresponding coded forms. The key is to identify common words in different sentences and find their corresponding common codes.

Step-by-Step Decoding Process

Let's analyze the given information:

• ‘she needs some medicines’ is coded as ‘1542’
• ‘take some water’ is coded as ‘849’
• ‘he needs rest’ is coded as ‘713’
• ‘she is water’ is coded as ‘269’

Finding Codes for Individual Words

We will compare the sentences to find common words and their respective codes.

1. Comparing Sentence 1 and Sentence 2:
   Common word: 'some'
   Codes: '1542' and '849'
   Common digit: '4'
   Therefore, the code for 'some' is '4'.
2. Comparing Sentence 1 and Sentence 4:
   Common word: 'she'
   Codes: '1542' and '269'
   Common digit: '2'
   Therefore, the code for 'she' is '2'.
3. Comparing Sentence 1 and Sentence 3:
   Common word: 'needs'
   Codes: '1542' and '713'
   Common digit: '1'
   Therefore, the code for 'needs' is '1'.
4. Comparing Sentence 2 and Sentence 4:
   Common word: 'water'
   Codes: '849' and '269'
   Common digit: '9'
   Therefore, the code for 'water' is '9'.
5. Finding the code for 'medicines':
   From Sentence 1: ‘she needs some medicines’ = ‘1542’
   We know: 'she'='2', 'needs'='1', 'some'='4'.
   The remaining word is 'medicines' and the remaining digit is '5'.
   Therefore, the code for 'medicines' is '5'.
6. Finding the code for 'take':
   From Sentence 2: ‘take some water’ = ‘849’
   We know: 'some'='4', 'water'='9'.
   The remaining word is 'take' and the remaining digit is '8'.
   Therefore, the code for 'take' is '8'.

Word-Code Mapping Summary

Based on our analysis, we have found the following codes for the required words:

• 'take' = '8'
• 'medicines' = '5'

Calculating the Code for 'take medicines'

To find the code for ‘take medicines’, we combine the codes for the individual words 'take' and 'medicines'.

Code for 'take medicines' = Code for 'take' + Code for 'medicines'

Code for 'take medicines' = 8 + 5, which gives us the code '85'.

Final Answer

The code for ‘take medicines’ in this language is ‘85’.

Revision Table: Coding Summary

Additional Information: Logic in Coding-Decoding

Coding-decoding questions in competitive exams test your logical reasoning ability. The coding pattern can be based on various logics:

• Letter Shifting: Letters are shifted a certain number of places forward or backward in the alphabet.
• Direct Letter Coding: Each letter in a word is assigned a specific code (another letter or digit).
• Word Substitution: One word is substituted for another (e.g., 'red' is called 'blue').
• Sentence Coding: As seen in this problem, words in sentences are assigned codes, and you need to decode based on common words.
• Number/Symbol Coding: Letters or words are coded using numbers or symbols.

Practice is essential to quickly identify the pattern and apply the correct decoding method.