In a certain code language, ‘FIGURE’ is written as ‘DJEVPF’. How will ‘DECODE’ be written as in that language?
BFAPBF
Let's analyze the coding pattern used to transform 'FIGURE' into 'DJEVPF'. This is a common type of coding-decoding question where each letter in the original word is changed to another letter based on a specific rule.
Understanding the FIGURE to DJEVPF Coding Rule
We compare the letters of the word 'FIGURE' with the letters of the code word 'DJEVPF' based on their positions in the English alphabet.
| Original Letter | Alphabetical Position | Coded Letter | Alphabetical Position | Difference/Rule |
|---|---|---|---|---|
| F | 6 | D | 4 | 4 - 6 = -2 |
| I | 9 | J | 10 | 10 - 9 = +1 |
| G | 7 | E | 5 | 5 - 7 = -2 |
| U | 21 | V | 22 | 22 - 21 = +1 |
| R | 18 | P | 16 | 16 - 18 = -2 |
| E | 5 | F | 6 | 6 - 5 = +1 |
Observing the differences in alphabetical positions, we can see a clear pattern: -2, +1, -2, +1, -2, +1. The rule is to alternately subtract 2 and add 1 to the alphabetical position of each letter to get the coded letter's position.
Applying the Coding Rule to DECODE
Now, let's apply this established coding rule (-2, +1, -2, +1, -2, +1) to the word 'DECODE'.
| Original Letter | Alphabetical Position | Rule | Calculation | New Position | Coded Letter |
|---|---|---|---|---|---|
| D | 4 | -2 | 4 - 2 = 2 | 2 | B |
| E | 5 | +1 | 5 + 1 = 6 | 6 | F |
| C | 3 | -2 | 3 - 2 = 1 | 1 | A |
| O | 15 | +1 | 15 + 1 = 16 | 16 | P |
| D | 4 | -2 | 4 - 2 = 2 | 2 | B |
| E | 5 | +1 | 5 + 1 = 6 | 6 | F |
By applying the -2, +1 sequence rule to each letter of 'DECODE', we get the coded letters B, F, A, P, B, F.
Therefore, 'DECODE' will be written as 'BFAPBF' in this code language.
Matching with Provided Options
Let's compare our result with the given options:
- BDDNBD
- BFDNBF
- BFAPBF
- BDANBD
Our calculated coded word 'BFAPBF' matches option 3.
Revision Table: Coding-Decoding Practice
| Original Word | Coded Word | Coding Rule Identified |
|---|---|---|
| FIGURE | DJEVPF | Alternate -2, +1 shift in alphabetical position |
| DECODE | BFAPBF | Applied the same alternate -2, +1 shift |
Additional Information: Types of Coding-Decoding
Coding and decoding questions test your ability to decipher a hidden pattern or rule. Common types include:
- Letter Coding: Letters are replaced by other letters based on shifting positions in the alphabet, or other patterns. This question is an example of letter coding.
- Number Coding: Words are coded using numbers.
- Symbol Coding: Letters or words are replaced by symbols.
- Substitution Coding: Words are replaced by other words.
To solve these questions, you need to carefully observe the relationship between the original words and their coded forms, identify the rule, and then apply it to the word you need to code or decode.
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Important Questions from Coding Letters of a Word
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