Coding-Decoding Problem Solution

This question is a classic example of a direct coding problem where each letter in a word is assigned a specific symbol or digit.

We are given the codes for three words:

• 'MOBILE' is written as ‘8$2%£@’
• 'DRAPE' is written as ‘9#+▪@’
• 'CRUEL' is written as ‘6#3@£’

By comparing the letters and their corresponding positions in the given words and their codes, we can deduce the code for each individual letter. Let's list the mappings we find:

We need to find the code for the word 'CRAMP'. Using the mappings we found, we can determine the code for each letter in 'CRAMP':

• For 'C', the code is 6 (from CRUEL).
• For 'R', the code is # (from DRAPE or CRUEL).
• For 'A', the code is + (from DRAPE).
• For 'M', the code is 8 (from MOBILE).
• For 'P', the code is ▪ (from DRAPE).

Combining the codes for each letter in order, the code for 'CRAMP' is 6#+8▪.

Now, let's compare this derived code with the given options:

• Option 1: 6#+%£ (Incorrect - M is not %, P is not £)
• Option 2: 93@%£ (Incorrect - C is not 9, R is not 3, A is not @, M is not %, P is not £)
• Option 3: 6#+8▪ (Matches our derived code)
• Option 4: 93@8▪ (Incorrect - C is not 9, R is not 3, A is not @)

Therefore, the correct code for 'CRAMP' is 6#+8▪.

Coding Decoding Revision Table

Additional Information on Coding-Decoding

Coding-decoding questions test your ability to decipher patterns and rules used to encode messages and then use those rules to decode other messages or encode new ones. Common types include:

• Letter Coding: Letters are replaced by other letters, numbers, or symbols based on specific rules (like shifting positions in the alphabet, or direct substitution as seen in this problem).
• Number/Symbol Coding: Words are coded into numbers or symbols based on rules like alphabetical position, digit sums, or specific assignments.
• Mixed Coding: A combination of letters, numbers, and symbols are used in the code. Often involves comparing multiple coded messages to find the common elements and their codes.
• Sentence Coding: Entire sentences are coded, and you need to find the code for individual words by comparing different coded sentences.

To solve these problems, always look for consistent patterns. Letters that appear in multiple words often have the same code, which helps confirm the pattern. Practicing various types of coding-decoding problems improves pattern recognition skills.