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CDS 2 Maths Answer Key Sep 13, 2026 Out; Check Detailed Solution

Soumya Rajput

Sep 17, 2026

CDS 2 Maths Answer Key 2026 with Detailed Solutions is available here to download in PDF format. UPSC CDS 2 2026 was conducted on September 13, 2026, with the Elementary Mathematics paper held from 4:00 PM to 6:00 PM. Candidates can use the set-wise CDS 2 Maths Answer Key to cross-check their responses, calculate their expected marks and review detailed step-by-step solutions for the questions asked in the examination.

Also Check: CDS 2 2026 All Subjects Question Paper with Detailed Solutions

CDS 2 2026 Maths Answer Key with Detailed Solution

CDS 2 Maths Unofficial Answer Key PDF (Sep 13, 2026) (SET A)

Q. No. Ans. Detailed Solution
1 B Check Solution
2 A Check Solution
3 A Check Solution
4 C Check Solution
5 C Check Solution
6 D Check Solution
7 C Check Solution
8 C Check Solution
9 B Check Solution
10 D Check Solution
11 D Check Solution
12 C Check Solution
13 C Check Solution
14 A Check Solution
15 A Check Solution
16 C Check Solution
17 D Check Solution
18 B Check Solution
19 C Check Solution
20 C Check Solution
21 D Check Solution
22 D Check Solution
23 A Check Solution
24 A Check Solution
25 D Check Solution
26 C Check Solution
27 D Check Solution
28 D Check Solution
29 B Check Solution
30 A Check Solution
31 D Check Solution
32 A Check Solution
33 A Check Solution
34 C Check Solution
35 C Check Solution
36 B Check Solution
37 C Check Solution
38 D Check Solution
39 A Check Solution
40 A Check Solution
41 D Check Solution
42 C Check Solution
43 A Check Solution
44 D Check Solution
45 C Check Solution
46 B Check Solution
47 B Check Solution
48 A Check Solution
49 B Check Solution
50 C Check Solution
51 D Check Solution
52 B Check Solution
53 C Check Solution
54 B Check Solution
55 A Check Solution
56 D Check Solution
57 B Check Solution
58 D Check Solution
59 B Check Solution
60 C Check Solution
61 D Check Solution
62 C Check Solution
63 D Check Solution
64 B Check Solution
65 B Check Solution
66 A Check Solution
67 A Check Solution
68 C Check Solution
69 C Check Solution
70 B Check Solution
71 B Check Solution
72 A Check Solution
73 B Check Solution
74 B Check Solution
75 A Check Solution
76 B Check Solution
77 C Check Solution
78 C Check Solution
79 B Check Solution
80 B Check Solution
81 B Check Solution
82 B Check Solution
83 A Check Solution
84 C Check Solution
85 C Check Solution
86 A Check Solution
87 B Check Solution
88 C Check Solution
89 B Check Solution
90 D Check Solution
91 B Check Solution
92 C Check Solution
93 B Check Solution
94 C Check Solution
95 B Check Solution
96 A Check Solution
97 D Check Solution
98 B Check Solution
99 D Check Solution
100 C Check Solution

Note: Candidates must use the answer key corresponding to their exact question-paper set while calculating marks. Set-wise correct answers and detailed solutions will be updated shortly.

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CDS 2 Maths Answer Key 2026: Exam Details

CDS 2 Elementary Mathematics was an objective-type paper conducted for 100 marks. Candidates were given 2 hours to attempt 100 multiple-choice questions covering Arithmetic, Algebra, Geometry, Trigonometry, Mensuration and Statistics. The Mathematics paper is applicable to candidates appearing for IMA, INA and AFA and is not part of the OTA written examination.

Particulars Details
Exam Name Combined Defence Services Examination (II), 2026
Conducting Body Union Public Service Commission (UPSC)
Subject Elementary Mathematics
Exam Date September 13, 2026
Exam Timing 4:00 PM to 6:00 PM
Duration 2 Hours
Maximum Marks 100 Marks
Number of Questions 100 Questions
Question Type Objective Type / Multiple Choice Questions
Negative Marking One-third of the marks assigned to a question for each incorrect answer

How to Calculate Marks Using CDS 2 Maths Answer Key 2026?

Candidates can calculate their estimated CDS 2 Maths score by comparing their responses with the correct answers provided in the answer key. The Elementary Mathematics paper consists of 100 questions carrying 100 marks, so each correct answer carries 1 mark. For every incorrect answer, one-third of the marks assigned to the question is deducted, which is approximately 0.33 mark. No marks are deducted for questions left unanswered.

CDS 2 Maths Estimated Score = Total Correct Answers × 1 – Total Incorrect Answers × 0.33

Response Marks
Correct Answer +1 Mark
Incorrect Answer Approximately -0.33 Mark
Unattempted Question 0 Mark

Example: If a candidate answers 70 questions correctly, 20 incorrectly and leaves 10 questions unanswered, the estimated score will be approximately 70 – (20 × 0.33) = 63.4 marks. Candidates should consider the exact one-third negative-marking rule while estimating their final score.

CDS English Tests

CDS 2 Maths Paper Analysis 2026

The detailed CDS 2 Maths Paper Analysis 2026 will be updated based on the examination conducted on September 13, 2026. The analysis will cover the overall difficulty level, good attempts and topic-wise questions from Arithmetic, Algebra, Geometry, Trigonometry, Mensuration and Statistics. Calculation-intensive questions and multi-step problems will also be considered while evaluating the overall difficulty level.

Particulars CDS 2 Maths 2026 Analysis
Overall Difficulty Level To be Updated
Good Attempts To be Updated
Arithmetic To be Updated
Algebra To be Updated
Geometry To be Updated
Trigonometry To be Updated
Mensuration To be Updated
Statistics To be Updated

Expected Trend: Based on recent CDS Mathematics papers, Arithmetic and Algebra are expected to remain important areas, while Geometry, Trigonometry and Mensuration may also contribute a substantial number of questions. The actual difficulty level, good attempts and topic-wise distribution will be updated after analysing the CDS 2 Maths Question Paper 2026.

CDS 2 Maths Score Interpretation 2026

The score calculated using the CDS 2 Maths Answer Key should be considered an estimated subject-wise score rather than the candidate's final qualifying status. Elementary Mathematics is applicable to IMA, INA and AFA candidates, and the marks obtained in this paper contribute to their overall written examination score along with English and General Knowledge. Candidates should therefore evaluate their Maths score together with their performance in the other two papers and the applicable academy-wise cut-off.

Estimated Maths Score Score Interpretation
70 Marks and Above Strong Mathematics performance with high accuracy
55-69 Marks Good performance; combined written examination marks remain important
40-54 Marks Moderate performance; English and GK scores may significantly affect the overall total
Below 40 Marks Candidate should carefully evaluate the overall written score and the impact of negative marking

Note: The above score ranges are indicative and provided only to help candidates assess their performance in the Elementary Mathematics paper. They are not official UPSC qualifying marks or academy-wise cut-offs.

CDS Previous Year Question Papers and Answer Keys

Candidates can compare the CDS 2 Maths Answer Key 2026 with previous-year papers to understand changes in difficulty level, topic-wise distribution and the type of calculations required in the examination. Practising previous CDS Mathematics papers can also help candidates identify frequently tested concepts and improve speed and accuracy.

CDS 2 Maths Answer Key 2026 FAQs

Ques: Where can I download the UPSC CDS 2 Maths Answer Key 2026?

Ans: The UPSC CDS 2 Maths Answer Key 2026 will be available here after the examination in set-wise format. Candidates can use it to verify their responses and calculate their expected score in the Elementary Mathematics paper.

Ques: Is the CDS 2 Maths Answer Key 2026 PDF available set-wise?

Ans: Yes, the CDS 2 Maths Answer Key 2026 PDF will be provided in a set-wise format wherever applicable. Candidates should match their question paper set before checking the correct answers.

Ques: Where can I check the CDS 2026 Answer Key with explanation?

Ans: Candidates can check the CDS 2026 Answer Key with explanation for English, General Knowledge, and Mathematics papers. Detailed solutions help candidates understand the correct approach and identify mistakes in their responses.

Ques: Is the CDS English Answer Key 2026 released separately from the Maths answer key?

Ans: Yes, the CDS English Answer Key 2026, General Knowledge Answer Key, and CDS Maths Answer Key 2026 are provided separately for the respective papers conducted in the examination.

Ques: Is the CDS 1 2026 Answer Key UPSC, including CDS 1 2026 Answer Key GK Set D, different from the UPSC CDS 2 Answer Key?

Ans: Yes, the CDS 1 2026 Answer Key UPSC and UPSC CDS 2 Answer Key correspond to different exam sessions. Candidates should check the relevant CDS session, subject, and paper set, such as CDS 1 2026 Answer Key GK Set D, before matching their responses.

*The article might have information for the previous academic years, please refer the official website of the exam.
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