In a certain language TRIANGLE is written as VTKCPING. How RECTANGLE will be written

Question

Prepp Team · Accepted Answer

Coding Decoding Pattern Analysis for TRIANGLE

This question is a classic example of a coding-decoding problem in reasoning. We are given a word, TRIANGLE, and its coded form, VTKCPING. Our task is to identify the rule or pattern used for this coding and then apply the same rule to another word, RECTANGLE, to find its coded form.

Analyzing the Coding Rule for TRIANGLE to VTKCPING

Let's compare the letters of the original word and the coded word position by position:

Original Letter (TRIANGLE)	Coded Letter (VTKCPING)	Position Shift
T	V	T is followed by U, then V (+2 positions)
R	T	R is followed by S, then T (+2 positions)
I	K	I is followed by J, then K (+2 positions)
A	C	A is followed by B, then C (+2 positions)
N	P	N is followed by O, then P (+2 positions)
G	I	G is followed by H, then I (+2 positions)
L	N	L is followed by M, then N (+2 positions)
E	G	E is followed by F, then G (+2 positions)

From this comparison, it is clear that each letter in the word TRIANGLE is shifted forward by 2 positions in the English alphabet to obtain the corresponding letter in the coded word VTKCPING.

Applying the Coding Rule to RECTANGLE

Now we apply the same rule (shifting each letter forward by 2 positions) to the word RECTANGLE:

Original Letter (RECTANGLE)	Applying Rule (+2)	Coded Letter
R	R + 2	T
E	E + 2	G
C	C + 2	E
T	T + 2	V
A	A + 2	C
N	N + 2	P
G	G + 2	I
L	L + 2	N
E	E + 2	G

Following this rule, RECTANGLE is coded as TGEVCPING.

Comparing with Options

Let's check which option matches our result TGEVCPING:

Option 1: TGEUCPING (Incorrect)
Option 2: TGEVCPKNG (Incorrect)
Option 3: TGEVCPING (Matches our result)
Option 4: GTEVCPING (Incorrect)

The coded form of RECTANGLE is TGEVCPING.

Revision Table: Coding Decoding Basics

Concept	Description	Example
Coding-Decoding	Questions where words, numbers, or symbols are coded according to a specific rule, and you need to find the rule and apply it.	If BIRD is coded as CIFE, how is NEST coded? (Rule: +1 shift)
Letter Coding	Coding based on shifting or rearranging letters of the alphabet.	As in this problem (alphabetical shift).
Alphabetical Shift	Each letter is moved a fixed number of positions forward or backward in the alphabet.	A becomes C (+2), Z becomes X (-2).

Additional Information: Types of Letter Coding

Beyond simple alphabetical shifts, letter coding can involve various patterns:

Reverse Alphabetical Order: Letters are coded based on their position from the end of the alphabet (A=Z, B=Y, etc.).
Mixed Shifts: The shift value changes for different letters in the word.
Position-Based Coding: Letters are coded based on their position number in the alphabet (A=1, B=2, etc.) or a calculation involving the position number.
Rearrangement of Letters: The letters of the original word are rearranged in a specific pattern (e.g., reverse order, alternating positions).
Substitution: Specific letters or groups of letters are replaced with other letters or symbols.
Opposite Letters: Letters are coded with their opposite letters in the alphabet (A opposite is Z, B opposite is Y, etc.).

Solving coding decoding questions requires careful observation of the given examples and identifying the logical rule or pattern connecting the original and coded forms.