RRB Group D Reasoning Elimination Method By Deepak Sir
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Railway exams, especially RRB Group D, include a reasoning section that tests your problem-solving skills. One of the most important topics in reasoning is coding-decoding. To solve coding-decoding questions quickly and correctly, the RRB Group D Reasoning Elimination Method is very useful. In this article, we will explain this method in simple steps with examples, following the guidance of Deepak Sir.
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What is the RRB Group D Reasoning Elimination Method?
The RRB Group D Reasoning Elimination Method is a technique to solve coding-decoding questions by removing wrong options. Many students make mistakes when they try to guess codes. Using this method, you can find the correct code for words step by step. The method is also called the elimination method because it eliminates impossible options first.
This method is very helpful in RRB exams because coding-decoding questions often appear in every paper. Deepak Sir emphasizes that practicing this method can save time and improve accuracy.
Why Use the Elimination Method in RRB Group D?
In RRB Group D reasoning, coding-decoding questions usually involve assigning numbers to letters or symbols. Without proper logic, students often select wrong answers. The RRB Group D Reasoning Elimination Method helps to:
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Identify correct letter-number pairs.
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Remove options that cannot be correct.
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Save time in the exam.
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Reduce the chances of errors.
By practicing this method, students can solve even complex questions with confidence.
Step-by-Step Approach to the Elimination Method for RRB Group D Exam
Step 1: Understand the Question
Read the question carefully. Identify the words and the codes given. For example:
| Bank Name | Code |
| SBI | 786 |
| RBI | 617 |
| CBI | 726 |
You may be asked to find the code for a new word like NIC.
Step 2: Identify Common Letters
Check for letters common between words. For example, in RIC and NIC, the common letters are I and C. Note these common letters because their codes are related.
Step 3: Deduce Codes Using Elimination
Compare the codes of similar words. Use elimination to find the correct digits. For example, if BI corresponds to 7 and 6 in some code, the remaining letter gets the last digit.
| Letter | Code |
| S | 8 |
| R | 1 |
| C | 2 |
| B | 6 |
| I | 7 |
Step 4: Check the Options
The order of digits in the code may change. For example, RIC can be 172, 217, or 712. The RRB Group D Reasoning Elimination Method focuses on the digits, not the order. The correct option will contain all required digits.
Step 5: Solve Complex Questions
For phrases or multiple words, the same elimination process applies. Find common letters between words, remove impossible options, and assign codes to remaining letters.
Example:
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Words: HOT, FOOD, WONDERFUL
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Goal: Find code for WONDERFUL
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Method: Use elimination from other words to confirm the correct code.
This step-by-step approach works for all coding-decoding questions in RRB Group D.
MCQ Questions on Coding-Decoding for RRB Group D 2026
Here are 20 multiple-choice questions (MCQs) with answers to practice the RRB Group D Reasoning Elimination Method.
1. If CAT is coded as 314, and BAT is coded as 214, what is the code for CAB?
A) 312
B) 324
C) 341
D) 213
Answer: A) 312
2. If DOG = 572, and DIG = 592, what is the code for LOG?
A) 672
B) 572
C) 652
D) 692
Answer: C) 652
3. In a code language, TABLE = 51846 and CABLE = 31846. What is the code for LAB?
A) 841
B) 184
C) 814
D) 481
Answer: B) 184
4. If STAR = 9265 and STONE = 92743, what is the code for RAN?
A) 659
B) 695
C) 965
D) 596
Answer: C) 965
5. In a code language, FLOWER = 734816. What is the code for LOW?
A) 348
B) 438
C) 483
D) 384
Answer: A) 348
6. If PENCIL = 673482 and PEN = 673, what is the code for NIL?
A) 482
B) 348
C) 732
D) 842
Answer: A) 482
7. If RICE = 1726, and NICE = 2726, what is the code for CRI?
A) 217
B) 127
C) 721
D) 271
Answer: A) 217
8. If BOOK = 4562, and COOK = 7562, what is the code for BOO?
A) 456
B) 765
C) 457
D) 654
Answer: A) 456
9. If SUN = 893 and MOON = 6178, what is the code for NOON?
A) 1786
B) 6178
C) 6178
D) 6178
Answer: B) 6178
(For practical purposes, NOON shares code digits as in the system.)
10. If CAR = 312, and BAR = 212, what is the code for ARC?
A) 123
B) 132
C) 231
D) 321
Answer: B) 132
11. If KING = 5736 and RING = 1736, what is the code for INK?
A) 736
B) 736
C) 376
D) 637
Answer: C) 376
12. If BALL = 2245 and TALL = 9245, what is the code for ALL?
A) 245
B) 425
C) 542
D) 254
Answer: A) 245
13. If TREE = 8563 and FREE = 7563, what is the code for REEF?
A) 5637
B) 7563
C) 5637
D) 3567
Answer: C) 5637
14. In a code language, NOTE = 7425 and VOTE = 9425. What is the code for TON?
A) 427
B) 247
C) 724
D) 742
Answer: A) 427
15. If MOON = 6178 and NOON = 6178, what is the code for MONO?
A) 6178
B) 6718
C) 7618
D) 1768
Answer: A) 6178
16. If SHOP = 5186, and POP = 818, what is the code for SOP?
A) 518
B) 581
C) 185
D) 815
Answer: A) 518
17. If GOLD = 3927 and COLD = 5927, what is the code for OLD?
A) 927
B) 972
C) 729
D) 792
Answer: A) 927
18. If BLUE = 81634 and CLUE = 31634, what is the code for LUB?
A) 163
B) 613
C) 361
D) 136
Answer: B) 613
19. If FISH = 5476 and DISH = 8476, what is the code for HIS?
A) 476
B) 746
C) 467
D) 764
Answer: A) 476
20. If KING = 5736 and QUEEN = 98265, what is the code for KIN?
A) 573
B) 537
C) 735
D) 357
Answer: A) 573
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