Navigation Menu

Search GK Quiz & Prep Material

Quantitative Aptitude

Lcm And Hcf Questions & Answers

Welcome to GKSchools, your trusted educational portal for competitive exam preparation. This page is dedicated to Lcm And Hcf, a crucial segment under the Quantitative Aptitude syllabus. Understanding Lcm And Hcf is essential for students and aspirants aiming to secure high ranks in competitive examinations. In this detailed study guide, we break down the core principles, solve practice questions, and share expert preparation strategies to help you gain mastery over this topic. Why is this topic important? Questions on Lcm And Hcf are frequently asked in major exams like SSC CGL, UP Police Constable, Railway (RRB) NTPC, Bank PO, and State PSC Exams. Examiners test your logical understanding, speed, and accuracy in this segment. Scoring well here requires a combination of conceptual clarity and regular mock test practice. On this page, you will find curated study materials, solved examples, and interactive quizzes designed by our editorial board to meet the latest 2026 exam standards. To get the maximum benefit from this guide, we recommend starting with the fundamental concepts, followed by attempting the quiz questions at the bottom of the page. Do not forget to bookmark this resource and check back regularly as we update our daily current affairs and subject notes to reflect the latest notification and syllabus updates. Start your learning journey today and elevate your exam preparation to the next level!

Practice high-quality solved questions, preparation strategies, and mock papers designed for competitive exams.

📅 Last Updated: July 15, 2026 ⏱ 5 mins read 👤 GKSchools Editorial Board

📝 Solved Practice Sheet & MCQ Test

Welcome to GKSchools, your trusted educational portal for competitive exam preparation. This page is dedicated to Aptitude Practice Problems, a crucial segment under the Quantitative Aptitude and Mathematics syllabus. Understanding Aptitude Practice Problems is essential for students and aspirants aiming to secure high ranks in competitive examinations. In this detailed study guide, we break down the core principles, solve practice questions, and share expert preparation strategies to help you gain mastery over this topic. Why is this topic important? Questions on Aptitude Practice Problems are frequently asked in major exams like SSC CGL, UP Police Constable, Railway (RRB) NTPC, Bank PO, and State PSC Exams. Examiners test your logical understanding, speed, and accuracy in this segment. Scoring well here requires a combination of conceptual clarity and regular mock test practice. On this page, you will find curated study materials, solved examples, and interactive quizzes designed by our editorial board to meet the latest 2026 exam standards. To get the maximum benefit from this guide, we recommend starting with the fundamental concepts, followed by attempting the quiz questions at the bottom of the page. Don't forget to bookmark this resource and check back regularly as we update our daily current affairs and subject notes to reflect the latest notification and syllabus updates. Start your learning journey today and elevate your exam preparation to the next level!

1. यदि (x2 = 5x + 6) तथा (x2 – x- k)का म.स. (x + 2) है, तो k का मान होगा
(a) 1
(b) 2
(c) 3
(d) 4

Answer >>

Answer: (B) 2

∴(x2 + 5x + 6) व (X2 – x – k) का म.स. (x + 2) है। ∴22 – 2 – k = 0 ⟹4 – 2 – k = 0 ⟹2 – k = 0 k = 2

 

2. व्यंजक x4 + 3x2 – 4 तथा x2 – 4x2 + 3 का म.स. है
(a) (x – 1)
(b) (x + 1)
(c) (x’2 – 1)
(d) (x’2 – 3)

Answer >>

Answer: (C) (x’2 – 1)

 

3. व्यंजकों (x2 – 1), (x3 + 1) तथा (x3 – 1) का लघुत्तम समापवर्त्य है
(a) x6 – 1
(b) x6 + 1
(c) x2 + 1
(d) x2 – 1

Answer >>

Answer: (A) x6 – 1

 

4. यदि व्यंजकों (x2 + 5x + 6) तथा (x2 – x – a) का महत्तम समापवर्तक (x + 2) है, तो a का मान होगा
(a) 1
(b) 6
(c) 2
(d) 3

Answer >>

Answer: (B) 6

 

5. (x2 – 1) तथा (x4 + x2 + 1) का म.स. होगा
(a) x – 1
(b) x2 + 1
(c) x2 + x + 1
(d) x2 – x + 1

Answer >>

Answer: (C) x2 + x + 1

 

6. दो व्यंजकों का लघुत्तम समापवर्त्य x(x + 1) (x + 2)(x + 3) तथा महत्तम समापवर्तक (x + 2)(x + 3) है। यदि एक व्यंजक (x3 + 5x2 + 6x) हो, तो दूसरा व्यंजक होगा
(a) x(x + 1) (x + 2)
(b) (x + 1) (x + 2) (x + 3)
(c) x(x + 2) (x + 3)
(d) x (x + 2) (x + 4)

Answer >>

Answer: (B)(x + 1) (x + 2) (x + 3)

 

7. दो द्विघातीय व्यंजकों का म.स. (x + 2) है तथा ल.स. (x3 + 2x2 – x – 2) है तब व्यंजक है
(a) x2 – 3x + 2, x2 + x – 2
(b) x2 + 3x + 2, x2 + x – 2
(c) x2 + 3x + 2, x2 – x – 2
(d) x2 – 3x + 2, x2 + x – 2

Answer >>

Answer: (B) x2 + 3x + 2, x2 + x – 2

 

8. 9xy2 (x + y) तथा 12x2y(x2 – y2) का ल.स. होगा
(a) 12x2y(x2 – y2)
(b) 12x2y2(x2 – y2
(c) 36x2y2(x2 – y2)
(d) 30x2y2(x2 – y2)

Answer >>

Answer: (C) 36x2y2(x2 – y2)

 

9. माना a तथा b दो व्यंजक हैं जिनके ल.स. तथा म.स. क्रमशः A तथा B हैं। यदि a + b = A = B, तो
(a) a + 2b = A + 2B
(b) a – b = A – B
(c)a2 – b2 = A2 – B2
(d) a2 + b2 = A2 + B2

Answer >>

Answer: (D) a2 + b2 = A2 + B2

 

10. दों व्यंजकों का योग तथा अन्तर क्रमशः 5x2 – x – 4 तथा x2 + 9x – 10 है। उनका ल.स. होगा
(a) (x – 1) (3x – 7) (2x – 3)
(b) (x2 – 1) (3x – 7)
(c) (x – 1) (3x + 7) (2x + 3)
(d) (x – 1) (3x + 7) (2x – 3)

Answer >>

Answer: (D) (x – 1) (3x + 7) (2x – 3)

 

11. एक स्कूल में 391 लड़कों एवं 323 लड़कियों को अधिकतम सम्भव समान कक्षाओं में विभक्त किया गया, ताकि छात्रों की कक्षाओं की संख्या छात्राओं की कक्षाओं की संख्या के समान हो, तो प्रत्येक कक्षा में छात्रों एवं छात्राओं की संख्या क्रमशः हैं
(a) 17,17
(b) 23,17
(c) 23,19
(d) इनमें से कोई नहीं

Answer >>

Answer: (C)23,19

 

12. n का वह न्यूनतम मान, जिसके लिए (x2 – 3x – 4) तथा (x3 – 2x2 – nx – 3) के महत्तम समापवर्तक में x सम्मिलित है,
(a) 6
(b) 4
(c) 29/4
(d) -1

Answer >>

Answer: (A)6

 

13. कोई संख्या, जिसे 5, 6, 7 तथा 8 में से प्रत्येक से भाग देने पर प्रत्येक दशा में 3 शेष बचता है परन्तु 9 से भाग देने पर शेष कुछ नहीं बचता, वह है
(a) 1680
(b) 1683
(c) 1783
(d) 1769

Answer >>

Answer: (B) 1683

 

14. 3,5,8 तथा 9 से विभक्त होने वाली न्यूनतम संख्या, जो पूर्ण वर्ग है, होगी
(a) 2500
(b) 3600
(c) 900
(d) 1600

Answer >>

Answer: (B) 3600

 

15. (72x4 + 243x), (24x3 – 54x) और (18x4 + 15x3 – 18x2 का म.स. होगा
(a) x (2x + 3)
(b) 2x (2x + 3)
(c) 4x(x + 3)
(d) 3x(2x + 3)

Answer >>

Answer: (D) 3x(2x + 3)

 

16. यदि (x2 + px + q) तथा (5x2 – 3px – 15q) का म.स. (x – 3) हो तो p तथा q के मान होंगे
(a) -5,6
(b) 5,-6
(c) -3,-6
(d) 5,6

Answer >>

Answer: (A) -5,6

 

17. एक फर्श की लम्बाई (x4 – x) मी तथा चौड़ाई (x3 + x2 + x) मी है। आँगन में फर्श पर समान माप के वर्गाकार टुकडे लगवाने हैं। आँगन में लगाने वाले टुकड़ों की कम से कम संख्या होगी
(a) x – 1
(b) x
(c) x + 1
(d) x(x2 + x + 1)

Answer >>

Answer: (A) x-1

 

18. पद (x2 – x2 – 13x – 3), (x2 – 6x – 27) तथा (x3 – x2 – 13x – 3),(x2 – 6x- 27) तथा (x2 + 21x + 54) का महत्तम समापवर्तक है
(a) (x + 1) (X-5) (x + 3)
(b) (x – 1)
(c) (x + 3)
(d) इनमें से कोई नहीं

Answer >>

Answer: (C) (x + 3)

 

19. वह बडी से बडी संख्या ज्ञात कीजिए, जिससे 63, 138 और 288 में भाग देने में समान शेष बचे।
(a) 12
(b) 16
(c) 17
(d) 15

Answer >>

Answer: (D) 15

 

20. छः घण्टियाँ एकसाथ बजनी आरम्भ हुई। यदि ये घण्टियाँ क्रमशः 2,4,6,8,10 तथा 12 सेकण्ड के अन्तराल से बजें, तो 30 मिनट में वे कितनी बार एक साथ बजेंगी?
(a) 14
(b) 16
(c) 15
(d) 18

Answer >>

Answer: (B 16

📖 Guide & Exam Strategy: Lcm And Hcf

Welcome to GKSchools comprehensive educational portal. This page is dedicated to Lcm And Hcf, a crucial segment under the Quantitative Aptitude syllabus. Understanding Lcm And Hcf is essential for students and aspirants aiming to secure high ranks in competitive examinations. In this detailed study guide, we break down the core principles, solve practice questions, and share expert preparation strategies to help you gain mastery over this topic.

Why is this topic important? Questions on Lcm And Hcf are frequently asked in major exams like SSC CGL, UP Police Constable, Railway (RRB) NTPC, Bank PO, and State PSC Exams. Examiners test your logical understanding, speed, and accuracy in this segment. Scoring well here requires a combination of strong foundational concepts and regular practice. By studying the questions and solutions listed below, you can identify typical patterns and avoid common mistakes during the actual exam.

💡 Preparation Tips & Methods

Here are some valuable preparation tips for Lcm And Hcf:

  • Clear Your Basics: Make sure you understand the foundational formulas or logical rules before jumping into mock tests.
  • Daily Practice: Dedicate at least 20-30 minutes daily to solve different variations of Lcm And Hcf questions.
  • Analyze Explanations: Do not just look at the correct option. Read the detailed step-by-step solutions to understand the logic.
  • Time Management: Practice with a timer to build the speed required to solve reasoning and math queries efficiently.

🚀 Benefits of Regular Practice

Key benefits of practicing this topic on GKSchools:

  • 100% Free Practice Sets: Access premium mock tests and solved examples without any subscription.
  • Updated Content: All practice sheets are revised regularly to match the latest exam pattern.
  • Mobile Friendly: Interface is fully responsive, letting you study on the go.

In conclusion, mastering Lcm And Hcf is a step-by-step journey that requires dedication. Use this study notes dashboard as your revision hub. Share this resource with your fellow aspirants, and bookmark the page for quick access before your exams. Let's begin the practice test below!

❓ Frequently Asked Questions (FAQs)

What is the best way to study Lcm And Hcf for competitive exams?

The best way is to learn the basic concepts, review step-by-step solved questions on GKSchools, and then attempt daily mock tests to build speed.

How many questions from Lcm And Hcf can we expect in the exam?

Typically, you can expect 3 to 5 questions from this topic in the Reasoning or Quantitative Aptitude section, depending on the specific exam.

Are the practice questions on GKSchools free?

Yes, all Q&A sets, study notes, and mock tests on GKSchools are 100% free for all students.

Does Lcm And Hcf require memorizing complex formulas?

Most questions test your logical reasoning and analytical abilities rather than complex formulas. However, practicing diverse patterns helps you recognize solutions faster.

Can I download these study materials in PDF format?

Yes, you can use the 'Print' button on our page to save the complete solved questions list as a clean, printer-friendly PDF file.

⭐ 5★ Rating दें
WhatsApp पर GKSchools Share करें