Understanding Coding Decoding Patterns

This question is a classic example of a coding-decoding problem often found in verbal reasoning sections of competitive exams. We are given a word, ACTOR, and its coded form, BBSPQ. We need to identify the rule or pattern applied to transform ACTOR into BBSPQ and then apply the same rule to the word NEEDS to find its code.

Analyzing the ACTOR to BBSPQ Code

Let's look at the letters in the original word ACTOR and its coded word BBSPQ, along with their positions in the English alphabet:

Now let's observe the change in position for each letter:

• A (1) becomes B (2): Change = \(\text{2 - 1} = +1\)
• C (3) becomes B (2): Change = \(\text{2 - 3} = -1\)
• T (20) becomes S (19): Change = \(\text{19 - 20} = -1\)
• O (15) becomes P (16): Change = \(\text{16 - 15} = +1\)
• R (18) becomes Q (17): Change = \(\text{17 - 18} = -1\)

The sequence of changes in alphabet position is +1, -1, -1, +1, -1.

Let's look closer at the letters and their type (Vowel/Consonant):

• A is a Vowel, change is +1
• C is a Consonant, change is -1
• T is a Consonant, change is -1
• O is a Vowel, change is +1
• R is a Consonant, change is -1

It appears the rule is: Vowels shift +1 position, and Consonants shift -1 position in the alphabet.

Applying the Pattern to NEEDS

Now, we apply the same rule (Vowel +1, Consonant -1) to the word NEEDS.

Following the rule:

• N is a Consonant: N - 1 position = M
• E is a Vowel: E + 1 position = F
• E is a Vowel: E + 1 position = F
• D is a Consonant: D - 1 position = C
• S is a Consonant: S - 1 position = R

So, the word NEEDS is coded as MFFCR.

Conclusion

Based on the coding pattern where vowels shift +1 and consonants shift -1, the word NEEDS is coded as MFFCR.

Revision Table: Coding Pattern Summary

Additional Information on Coding Decoding

Coding-decoding is a common topic in logical reasoning tests. It assesses a candidate's ability to decipher rules and patterns hidden in codes. These patterns can vary widely. Some common types include:

• Letter Shift: Each letter is shifted by a fixed number of positions (e.g., +2, -3).
• Mixed Shift: The shift amount or direction changes based on the letter's position in the word or its type (like Vowel/Consonant, as seen in this problem).
• Letter Substitution: Each letter is replaced by another specific letter, often following a specific logic or just a direct mapping.
• Number/Symbol Coding: Words are coded using numbers or symbols based on letter positions or other rules.
• Mixed Coding: Combinations of letters, numbers, or symbols are used in the code.
• Direct Letter Coding: A list of words and their codes is given, and you have to find the code for a new word using direct letter-to-letter mapping from the examples.

Practicing different types of coding-decoding problems helps in quickly identifying the underlying pattern during exams.