Coding-Decoding Important Questions For IBPS RRB PO 2025 Exam

Coding-Decoding For IBPS RRB PO 2025 Exam: Coding decoding is an important and easy topic that belongs to the reasoning section. In the IBPS RRB PO prelims exam, candidates can expect at least 4-5 questions at an easy to moderate level. As we can see, it contains high weightage in the exam due to which its importance increases. In this blog, we have provided the Coding-Decoding Important Questions For IBPS RRB PO 2025 Exam with a basic concept about it. Candidates are advised to first understand the concept and then solve the questions. Also, they are advised to practice the mock tests to know the exam pattern, exam environment, and much more.

Concept of Coding-Decoding

Concept: Coding-Decoding is a method used in puzzles or problems to represent words or letters differently. The idea is to encode (transform) a message into a different form (coded), and then decode the coded one to its original form. Here’s a simple explanation of the concept:

1. What is Coding?

In coding, you take a piece of information (like a word or letter) and change it into a different form according to some rules. For example:

• Word → Code (changing a word into code)

For instance, you might replace each letter in the word “CAT” with the next letter in the alphabet:

• C → D
• A → B
• T → U

So, “CAT” becomes “DBU.”

2. What is Decoding?

Decoding is the opposite of coding. It means you take the coded message and convert it back to its original form using the same rule.

• Code → Word

If you were given the code “DBU,” you could decode it back to “CAT” by reversing the rule:

• D → C
• B → A
• U → T

So, decoding “DBU” brings you back to “CAT.”

Coding-Decoding Important Questions PDF Link

Directions: Answer the questions based on the information given below:

In a certain language,

‘fight might end today’ is coded as ’mk, rk, ak, pk’

‘today might started new’ is coded as ’rk, dk, pk, sk’

‘struggle fight already started’ is coded as ’ck, ak, sk, uk’

‘already new struggle end’ is coded as ’dk, ck, uk, mk’

Question 1: Which of the following is the code for ‘today’ in the given language?

A) rk

B) dk

C) pk

D) either (a) or (c)

E) either (a) or (b)

Question 2: Which of the following words is coded as ‘dk’ in the given language?

A) started

B) new

C) end

D) might

E) None of these

Question 3: Which of the following is coded as ‘ak’?

A) already

B) today

C) fight

D) end

E) None of these

Question 4: What is the code of ‘struggle’ in the given language?

A) uk

B) either (a) or (d)

C) sk

D) ck

E) None of these

Question 5: Which among the following is coded as ‘mk sk’?

A) started new

B) end started

C) today end

D) started already

E) None of these

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