RBI Assistant Reasoning Previous Year Questions: Practice Set 3 for Exam Preparation by Vidhu Sir

Preparing for the RBI Assistant exam requires regular practice and a clear understanding of question patterns. Reasoning is one of the most important sections in this exam. It is scoring, but also time-sensitive. Candidates who practice consistently can improve both speed and accuracy.

Here, we’ll present Practice Set 3 based on previous year questions. The aim is to help aspirants understand the exam pattern, improve logical thinking, and build confidence. 

Understanding the Nature of the RBI Assistant Reasoning Section

The reasoning section in the RBI Assistant is usually easy to moderate in level. However, it is highly competitive. Many students attempt almost all questions. This makes accuracy very important.

The cutoff in this section is often high. A small mistake can affect the final result. So, students should focus on careful reading and correct answers rather than guessing.

Regular practice of previous year questions helps in understanding common patterns. It also reduces exam fear.

RBI Assistant Practice Set 3: Important Question Types

In this practice set, we will cover different types of reasoning questions. These are based on previous year exams.

1. Alphanumeric Series: Pattern Identification

Question Type

Find how many numbers are immediately followed by a symbol and preceded by a letter.

Approach

Look for the pattern: Letter → Number → Symbol

Scan the entire sequence.
Check each number carefully.
Count only those that follow the exact pattern.

Answer

There are 3 such cases.

Tip: Do not assume patterns. Always verify each case properly.

2. Alphanumeric Series: Pattern in a Range

Question Type

Find how many numbers are followed by a symbol between two given elements.

Approach

First, locate the range (between '@' and 'D').
Then check for the pattern:
Number → Symbol

Count all such cases within the range only.

Answer

There are 2 such cases.

Tip: Focus only on the given segment. Ignore the rest of the sequence.

3. Sum of Numbers Between Letters

Question Type

Find the sum of numbers between two letters.

Example

Find the sum of numbers between M and S.

Approach

Identify all numbers between the two letters.
Add them carefully.

Answer

The sum is 27.

Important Variations

• Prime Numbers Only → Add only prime numbers
  Example: 2, 3, 7 → Sum = 12

• Composite Numbers Only → Add only composite numbers
  Example: 6, 8 → Sum = 14

• Non-Prime Numbers → Includes composite numbers and 1
  Example: 6, 8, 1 → Sum = 15

Key Concept

Number 1 is neither prime nor composite.

Tip: Read the question carefully. A small change in condition changes the answer.

4. Position-Based Question

Question Type

Find the position of an element based on left and right directions.

Example

Which element is sixth to the left of the ninth element from the right?

Shortcut Method

Add both numbers:
6 + 9 = 15

Count the 15th element from the right.

Answer

The element is E.

Tip: Use the addition method to save time.

5. Consonant Position Question

Question Type

Find a specific consonant based on position.

Example

Find the sixth consonant to the left of the 10th element from the right.

Approach

Locate the 10th element from the right.
Move left and count only consonants.
Ignore vowels and symbols.

Answer

The correct consonant is T.

Tip: Count carefully. Do not include vowels.

6. Coding-Decoding (Chinese Coding)

Question Type

Find the correct code for a sentence.

Example

“Happiness is always tricky.”

Approach

Identify common words like “is” and “always”.
Match their codes from the given data.
Eliminate wrong options.
Assign new codes to new words.

Answer

The correct option is C.

Tip: Use elimination. It saves time.

7. Coding-Decoding: Word Code

Question Type

Find the code for a specific phrase.

Example

“Live Happy Life”

Approach

Find codes for known words like “Happy” and “Live”.
Assign a new code to “Life”.
Combine all correctly.

Answer

The correct option is B.

Tip: Do not confuse similar words like “Happy” and “Happiness”.

8. Coding-Decoding: Direct Word Code

Questions

• Code for “is”

• Code for “always”

Approach

These are direct questions.
Use previously identified codes.

Answers

• Code for “is” → Option D

• Code for “always” → Option A

9. Blood Relation Puzzle

Question Type

Family tree based question.

Approach

List all members.
Use given conditions step by step.
Draw a family tree.

Key Result

J is the nephew of O.

Answer

Option C (J)

Tip: Always draw the structure. It reduces confusion.

10. Direction and Distance

Question Type

Find final distance after movements.

Movements Summary

• 30m South

• 30m West

• 20m South

• 30m East

Approach

Horizontal movements cancel each other.
Total South movement = 50m

Answer

Distance = 50 meters

If not in options → choose None of These

Tip: Use simple diagrams for clarity.

11. Letter Operation

Question Type

Letter transformation based question.

Rule

• Vowels → Next letter

• Consonants → Previous letter

Example Word

LEGISLATURE

Shortcut

Focus only on letters that can become F:

• E → F

• G → F

Count

• E appears 2 times

• G appears 1 time

Answer

Total F = 3

Tip: Avoid full rearrangement. Use smart observation.

12. Number Rearrangement

Question Type

Arrange digits in descending order.

Example

Original: 768452193
New: 987654321

Task

Find how many digits remain in the same position.

Answer

Only 1 digit remains the same.

Tip: Write both sequences for easy comparison.

13. Variable-Based Puzzle

Question Type

Persons, phones, and shops.

Approach

Create a table.
Fill in direct information first.
Use elimination for the remaining.

Key Result

Amit purchased the Vivo mobile.

Answer

Option C (Amit)

Tip: Start with fixed conditions for faster solving.

14. Day-Based Puzzle

Question Type

Arrangement of people across days.

Final Arrangement

• Sunday → Pihu

• Monday → Reema

• Tuesday → Omar

• Wednesday → Naman

• Thursday → Mohit

• Friday → Qadir

Pattern Question

Pihu is related to which day?

Answer

Tuesday

Tip: Observe patterns. They are often hidden.

15. Floor and Flat Puzzle

Question Type

Building arrangement puzzle.

Approach

Draw floors and flats.
Place fixed positions first.
Use clues step by step.

Question

Who lives on Flat Q of Floor 4?

Answer

D

Tip: Do not assume positions. Follow clues strictly.

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