Tips to Solve Coding-Decoding Questions Quickly in RBI Grade B Exam

Coding-Decoding is an essential part of the Reasoning Ability section of the RBI Grade B Phase 1 exam. If you prepare this topic smartly, you can increase your total score. Among all Reasoning topics. This is the reason why Coding-Decoding is considered a scoring part of the Reasoning section. But only when your logical reasoning ability is good and you can solve the questions quickly. That is, this part tests your ability to understand patterns, your logical skills, and analytical thinking. Therefore, to score maximum marks in the Reasoning section, it is very important to master this topic. But many aspirants start feeling nervous just by the mention of this topic. But why? Because they don’t know the correct ways to solve it. In this blog, we will learn exactly how to approach Coding-Decoding questions and solve them quickly. Along with this, we will give you some of the best sample questions with solutions to strengthen your practice.

Tips to Solve Coding-Decoding Questions Quickly

For the first time, you might feel confused while solving Coding-Decoding questions in traditional style. But if you keep the tips given below in mind, you can solve them not only quickly but also accurately. These questions follow a set pattern. And that’s why, when you learn to spot them right at the beginning, you’ll be able to solve them quickly and save your time to solve other Reasoning questions as well.

Let’s take a look at the best tips to master them:

1. Understand the Type of Coding Used

Different questions use different styles of coding. Identifying the type is the first and most important step.

• Find letter shifting, number patterns, or word substitution.
• Ask yourself: Is it a word-to-word code or sentence-to-code pattern?
• Recognize if it’s direct, reverse, or mathematical.
• Know if the code is for a word or for a position.
• Don’t assume the pattern—confirm it by comparing examples.
  

2. Memorize Alphabet Positions

Knowing alphabet positions saves time and helps spot shifting patterns instantly.

• A to Z = 1 to 26 and Z to A = 26 to 1.
• Write down the alphabet with numbers while practicing.
• Learn to spot +1, -2, +3 shifts easily.
• Use short forms: M=13, N=14 to speed up.
• Practice reverse coding patterns on a regular basis
  

3. Break the Code Down

Solving the entire word at once can confuse you. So, solve it letter by letter.

• Compare each letter with the coded letter.
• Note the difference in their positions.
• Check if the same rule applies to all letters.
• Search for repeated logical sequences
• Keep your work neat for quick spotting.
  

4. Practice All Patterns

When you get exposed to all types of coding, you become faster and more confident in solving the questions.

• Practice substitution coding, number-letter mix, and symbol coding.
• Solve examples from previous years’ papers.
• Mark down any new question variations you encounter.
• Categorize types you find tricky and revisit them.
• Take sectional tests that are concentrated only on Coding-Decoding
  

5. Solve Questions with a Timer

Speed matters in the exam. So, develop the habit of solving them quickly.

• Time yourself whenever you practice any set.
• Try to solve each question in less than 1 minute.
• Increase difficulty as you improve speed.
• Carefully look at your mistakes and learn from them.
• Mimic the exam environment while practicing.

Important Coding-Decoding Questions for Practice

Check out some important sample questions for Coding-Decoding:

Directions (1-5): Answer the questions based on the information given below.

In a certain code of language,

‘much needed helps required’ is written as ‘14@G 9%R 19$C 15&C’

‘climate lazy worker tests’ is written as ‘13@X 24&Q 4!D 21%R’

‘awards given with today’ is written as ‘2&R 8%M 24@G 21%X’

‘ready steady quiz decline’ is written as ‘19%X 5!D 18@Y 20&X’

Common solution:

For the symbols – Symbols are coded according to the number of letters in each word

Such as, if there are 4 letters in the word, use – @

If 5, use – %

If 6, use – &

If 7, use – !

If 8, use – $

For the number, +1 in the place value of first letter of each word.

For the letter, -1 in the last letter of the word.

For example the code of the word CLIMATE is 4!D because C+1 = 4, there are 7 letters in the word so use symbol !, last letter E-1 = D so, the code is 4!D.

Question 1: How will the word ‘SCHOOL’ be coded as?

A) 20!K

B) 20@M

C) 20&N

D) 20&K

E) None of these

Solution:

The code of the word ‘SCHOOL’ is ‘20&K’ as per the rules followed in the given language.

Hence, option d.

Question 2: How will ‘TRAIN LEFT STATION’ be coded as?

A) 21%M 12@S 19!M

B) 21&M 12!S 19!M

C) 21%M 13@S 20!M

D) 21%M 13@S 19!M

E) None of these

Solution:

The code for the ‘TRAIN LEFT STATION’ is ‘21%M 13@S 20!M’.

Hence, option c.

Question 3: The code ‘3&C’ is coded from which of the following word?

A) Beggar

B) Behind

C) Bihar

D) Besides

E) None of these

Solution:

The code ‘3&C’ is coded for ‘Behind’.

Hence, option b.

Question 4: If code for the word ‘something better’ is ‘20#F 3&Q’ in the same language then what would be the code of ‘knowledge gain’?

A) 12#D 8@M

B) 11#D 7@M

C) 12%D 6&M

D) 10$G 6%M

E) 12@M 8#H

Solution:

If code for the ‘something better’ is ‘20#F 3&Q’ which means word with 9 letters is coded with symbol #.

So, code for the word ‘knowledge gain’ is ‘12#D 8@M’.

Hence, option a.

Question 5: The code ‘2$C 14&X’ is coded for the _____ and ___?

A) Assault and Youth

B) Rebel and Define

C) Assigned and Memory

D) Dress and Kites

E) None of these

Solution:

According to the rules followed Assigned and Memory would be coded as ‘2$C 14&X’

Hence, option c.

Takeaway

You can master Coding-Decoding and make it one of your scoring areas in the Reasoning section. Lay a strong foundation. Achieve it with regular practice, have a clear approach, look for the patterns quickly, and keep the momentum going. It’s therefore the right time to ramp up your preparation. Take full advantage of PracticeMock’s Free RBI Grade B Mock Test and dive into our courses available online. These resources are developed to refine your accuracy and accelerate your speed in reasoning, especially in topics like Coding-Decoding.

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