In a certain code language, 'VIOLET' is written as 'TJMMCU', and 'MARKET' is written as 'KBPLCU'. How will 'ROCKET' be written in that language?
PPALCU
Decoding ROCKET using Coding-Decoding Pattern Analysis
In this type of coding-decoding question, we need to identify the specific rule or pattern used to transform the original words into their coded forms. We are given two examples to help us deduce this pattern.
Analyzing the First Coding Example: VIOLET to TJMMCU
Let's look at the relationship between the letters of 'VIOLET' and 'TJMMCU'. We can compare the alphabetical positions of each letter:
| Original Letter | Position | Coded Letter | Position | Change in Position |
|---|---|---|---|---|
| V | 22 | T | 20 | $20 - 22 = -2$ |
| I | 9 | J | 10 | $10 - 9 = +1$ |
| O | 15 | M | 13 | $13 - 15 = -2$ |
| L | 12 | M | 13 | $13 - 12 = +1$ |
| E | 5 | C | 3 | $3 - 5 = -2$ |
| T | 20 | U | 21 | $21 - 20 = +1$ |
From this analysis, we observe a pattern of changes in alphabetical position: -2, +1, -2, +1, -2, +1.
Analyzing the Second Coding Example: MARKET to KBPLCU
Let's check if the same pattern holds for the second example, 'MARKET' coded as 'KBPLCU':
| Original Letter | Position | Coded Letter | Position | Change in Position |
|---|---|---|---|---|
| M | 13 | K | 11 | $11 - 13 = -2$ |
| A | 1 | B | 2 | $2 - 1 = +1$ |
| R | 18 | P | 16 | $16 - 18 = -2$ |
| K | 11 | L | 12 | $12 - 11 = +1$ |
| E | 5 | C | 3 | $3 - 5 = -2$ |
| T | 20 | U | 21 | $21 - 20 = +1$ |
The pattern (-2, +1, -2, +1, -2, +1) is consistent in both examples. The rule is to alternately subtract 2 and add 1 to the alphabetical position of each letter, starting with -2.
Applying the Pattern to ROCKET
Now we apply this established coding pattern to the word 'ROCKET':
- R (18th letter): Apply -2. $18 - 2 = 16$. The 16th letter is P.
- O (15th letter): Apply +1. $15 + 1 = 16$. The 16th letter is P.
- C (3rd letter): Apply -2. $3 - 2 = 1$. The 1st letter is A.
- K (11th letter): Apply +1. $11 + 1 = 12$. The 12th letter is L.
- E (5th letter): Apply -2. $5 - 2 = 3$. The 3rd letter is C.
- T (20th letter): Apply +1. $20 + 1 = 21$. The 21st letter is U.
Combining the resulting letters, the coded word for 'ROCKET' is 'PPALCU'.
Comparing with Options
Let's check which option matches our result 'PPALCU':
- PPALCU
- UCALTP
- GGSJAL
- PAPPLU
The coded word 'PPALCU' corresponds to the first option.
Revision Table: Common Coding Patterns in Reasoning
| Pattern Type | Description | Example Logic |
|---|---|---|
| Consistent Shift | Each letter shifted by the same number (e.g., +3 for all). | CAT > FDW |
| Alternating Shift | Shift amount alternates (+1, -2, +1, -2...). | As seen in the problem (-2, +1, -2...). |
| Positional Value | Coding based on letter's place in alphabet (A=1, Z=26). | ACE > 135 |
| Reverse Positional Value | Coding based on letter's place from end (A=26, Z=1). | ACE > 26 24 22 |
| Letter Substitution | Each letter replaced by another fixed letter or symbol. | A=$, B=% etc. |
| Jumbling/Rearrangement | Letters of word rearranged based on position rule. | TEACHER > AERHCET (reverse) |
Additional Information: Mastering Coding Decoding Questions
Coding and decoding questions are a key part of logical reasoning tests. Success depends on quickly identifying the underlying rule connecting the original and coded forms. Common patterns involve changes in letter position based on addition, subtraction, or fixed sequences. Sometimes, the pattern might involve reversing the word, substituting letters, or rearranging them based on specific criteria.
Tips for solving:
- Write down the alphabet and its positions (A=1, B=2,... Z=26).
- Compare original and coded words letter by letter.
- Look for consistent differences in positions.
- If numerical, check for arithmetic operations or sequences.
- Practice identifying various types of patterns.
Understanding different coding logic types will significantly improve your speed and accuracy in solving these problems.
Important Questions from Coding and Decoding By Letter Shifting
In a certain code language, 'INERTIA' is written as 'RGVKGBZ'. How will 'FLOWER' be written in that language?
In a certain code language, ‘ADVANCE’ is written as ‘VDAAECN’ and ‘BABYSIT’ is written as ‘BABYTIS’. How will ‘AFFABLE’ be written in that language?
In a certain language, CHHAPAK is coded as DJKEUGR. How will MALANGA be coded in that language?
In a certain code language, ‘DURABLES’ is written as ‘BSVETFMC’. How will ‘FEASIBLE’ be written in that language?
In a certain code language, 'FIXED' is written as 'XIFED' and 'MOUSE' is written as 'USOME'. How will 'GAMBIT' be written in that language?
