Understanding the Coding Decoding Logic

This question involves a type of coding-decoding where letters of a word are converted into numbers based on a specific rule. We are given examples to figure out this rule and then apply it to a new word.

Analyzing the Examples: LACKEY and LUSTER

Let's look at the first example: 'LACKEY' is coded as '121311525'.

We can write down the letters of LACKEY and their corresponding alphabetical positions (A=1, B=2, C=3, ..., Z=26):

• L is the 12th letter.
• A is the 1st letter.
• C is the 3rd letter.
• K is the 11th letter.
• E is the 5th letter.
• Y is the 25th letter.

If we combine these position numbers together in order, we get 12, 1, 3, 11, 5, 25, which forms the sequence '121311525'. This matches the given code.

Now let's check the second example: 'LUSTER' is coded as '12211920518'.

Let's find the alphabetical positions for the letters in LUSTER:

• L is the 12th letter.
• U is the 21st letter.
• S is the 19th letter.
• T is the 20th letter.
• E is the 5th letter.
• R is the 18th letter.

Combining these position numbers gives 12, 21, 19, 20, 5, 18, which forms the sequence '12211920518'. This also matches the given code.

Identifying the Coding Pattern

From the analysis of LACKEY and LUSTER, the coding pattern is clear:

Each letter in the word is replaced by its numerical position in the standard English alphabet (A=1, B=2, ..., Z=26). These position numbers are then concatenated (joined together) to form the code.

Applying the Pattern to KIPPER

Now, we need to find the code for 'KIPPER' using the same rule. Let's find the alphabetical position for each letter in KIPPER:

• K is the 11th letter.
• I is the 9th letter.
• P is the 16th letter.
• P is the 16th letter.
• E is the 5th letter.
• R is the 18th letter.

Now, we concatenate these position numbers:

11 (for K) 9 (for I) 16 (for P) 16 (for P) 5 (for E) 18 (for R)

Joining these numbers together gives us the code: 1191616518.

Comparing with Options

Let's compare our derived code with the given options:

• Option 1: 1191616518
• Option 2: 1191622522
• Option 3: 1191640532
• Option 4: 1191617520

Our calculated code 1191616518 matches Option 1.

Concatenated Code: 1191616518

Revision Table: Coding Decoding Basics

Additional Information: Alphabet Positions for Coding

Knowing the position of each letter in the alphabet is crucial for many coding-decoding problems. Here is a quick reference:

A=1, B=2, C=3, D=4, E=5, F=6, G=7, H=8, I=9, J=10, K=11, L=12, M=13, N=14, O=15, P=16, Q=17, R=18, S=19, T=20, U=21, V=22, W=23, X=24, Y=25, Z=26.

Sometimes, the positions are counted from the end of the alphabet (Z=1, Y=2, etc.). Other patterns might involve adding or subtracting a fixed number from the position, or using positions of opposite letters.