UPSC Civil Services Main 2025 Mathematics Paper I PDF

Central Government Jobs Other Jobs 2025

  • Year 2025
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination UPSC Civil Services (Main) Examination
Year 2025
Conducting Body UPSC
Paper Mathematics Paper I
Subject Mathematics
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Mixed

This is the Mathematics Paper I for the UPSC Civil Services (Main) Examination 2025. Conducted by UPSC, this paper is designed to test candidates' in-depth knowledge of mathematics. It consists of 8 questions divided into two sections, with candidates required to answer a total of five questions, including compulsory questions 1 and 5. The paper allows three hours to complete and carries a maximum of 250 marks. This paper is crucial for aspirants aiming for top ranks in the Civil Services.

Major Topics Covered

  • Vector Spaces
  • Linear Transformations
  • Calculus
  • Optimization

Why This Paper is Important

  • Useful for UPSC Civil Services (Main) Examination preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • UPSC Civil Services (Main) Examination 2025 General Studies Paper I
  • UPSC Civil Services (Main) Examination 2025 General Studies Paper II
  • UPSC Civil Services (Main) Examination 2025 Optional Subject Paper I
  • UPSC Civil Services (Main) Examination 2025 Optional Subject Paper II
  • UPSC Civil Services Main 2025 Mathematics Paper I Answer Key
  • UPSC Civil Services Main Mathematics Syllabus
  • UPSC Civil Services Main Exam Pattern
  • UPSC Civil Services Main Exam Pattern Details

Instructions

  • पुस्तिका के मुख पृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे।
  • यदि आवश्यक हो, तो उपयुक्त आँकड़ों का चयन कीजिए तथा उनको निर्दिष्ट कीजिए।
  • जब तक उल्लिखित न हो, संकेत तथा शब्दावली प्रचलित मानक अर्थों में प्रयुक्त हैं।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी।
  • यदि काटा नहीं हो, तो प्रश्न के उत्तर की गणना की जाएगी चाहे वह उत्तर अंशतः दिया गया हो।
  • प्रश्न-सह-उत्तर (क्यू.सी.ए.) पुस्तिका में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए।

  • There are EIGHT questions divided in TWO SECTIONS and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Questions no. 1 and 5 are compulsory and out of the remaining, any THREE are to be attempted choosing at least ONE question from each section.
  • The number of marks carried by a question / part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Assume suitable data, if considered necessary, and indicate the same clearly.
  • Unless otherwise mentioned, symbols and notations carry their usual standard meanings.
  • Attempts of questions shall be counted in sequential order.
  • Unless struck off, attempt of a question shall be counted even if attempted partly.
  • Any page or portion of the page left blank in the Question-cum-Answer (QCA) Booklet must be clearly struck off.

Questions (page 2)

Section A

Q1. क्या समुच्चय (0, 0, 0, 3), (1, 1, 0, 0), (0, 1, -1, 0) को सदिश समष्टि \mathbbR4 का एक आधार बनाने के लिए विस्तारित किया जा सकता है ? अपने उत्तर की पुष्टि कीजिए। रैखिक रूपांतरण T: \mathbbR4 → \mathbbR3, जो T(x, y, z, w) = (x-w, y + z, z-w) द्वारा दिया गया है, का परिसर (रेन्ज), कोटि (रैंक), अष्टि (कर्नेल) और शून्यता ज्ञात कीजिए। लम्बाई 6 मीटर और चौड़ाई 2 मीटर की एक आयताकार धातु की चादर दी गई है। चारों कोनों से चार बराबर वर्गों को हटाया गया है। इस चादर के फलकों को मोड़कर एक खुला आयताकार सन्दूक बनाना है। सन्दूक की ऐसी सन्निकट ऊँचाई ज्ञात कीजिए कि सन्दूक का आयतन अधिकतम हो। दिया गया है कि f(x + y) = f(x) f(y), सभी वास्तविक x, y के लिए, f(x) ≠ 0 किसी भी वास्तविक x के लिए और f'(0) = 2 है। सभी वास्तविक x के लिए दर्शाइए कि f'(x) = 2f(x) है। अतः f(x) ज्ञात कीजिए।

(a) Can the set (0, 0, 0, 3), (1, 1, 0, 0), (0, 1, -1, 0) be extended to form a basis of the vector space \mathbbR4 ? Justify your answer.

(b) Find the range, rank, kernel and nullity of the linear transformation T: \mathbbR4 → \mathbbR3 given by T(x, y, z, w) = (x - w, y + z, z - w).

(c) A rectangular sheet of metal of length 6 meters and width 2 meters is given. Four equal squares are removed from the four corners. The sides of this sheet are now folded up to form an open rectangular box. Find approximately the height of the box, such that the volume of the box is maximum.

(d) Given that f(x + y) = f(x) f(y) for all real x, y, f(x) ≠ 0 for any real x and f'(0) = 2. Show that for all real x, f'(x) = 2f(x). Hence find f(x).

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Frequently asked questions

What is the name of the exam?

The exam is the UPSC Civil Services (Main) Examination.

What is the year of this question paper?

This question paper is from the year 2025.

Which paper is this?

This is Mathematics Paper I.

Who conducts the Civil Services Main Examination?

The examination is conducted by UPSC (Union Public Service Commission).

What is the maximum marks for this paper?

The maximum marks for Mathematics Paper I is 250.

What is the time allowed for this paper?

The time allowed for this paper is Three Hours.

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