Class 9 Maths MCQs Chapter 1 Number Systems

Class 9 Maths MCQ Chapter 1 Number Systems


Explore a collection of Multiple Choice Questions (MCQs) for Chapter 1 'Number System' in Class 9 Maths, complete with solutions. These Class 9 Maths MCQs have been meticulously crafted following the SEBA syllabus. and follow the NCERT curriculum. They are designed to align with the latest examination pattern, providing an online resource for students.

Class 9 Maths Chapter 1 Number System MCQs are provided here in both English and Assamese mediums specially designed for Assamese medium students for better understanding.


In addition to the MCQs, we've included detailed explanations for select questions to enhance students' comprehension of the concepts. Practising these chapter-wise MCQs in the Class 9 Mathematics subject can significantly improve problem-solving skills and boost confidence among students.

Remember to explore our compilation of important questions for Class 9 Mathematics.

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Instructions for Multiple Choice Questions (MCQs):


  • In this section, you will find multiple-choice questions (MCQs).
  • Each MCQ consists of four options, of which only one is correct.
  • To attempt a question, select one option by clicking it.
  • Ensure that you have selected your chosen answer clearly.
  • Good luck!

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নৱম শ্ৰেণীৰ গণিত অধ্যায় 1 সংখ্যা প্ৰণালী MCQs


Question 1: তলৰ কোনটো স্বাভাৱিক সংখ্যা? (Which of the following is a natural number?)
A. -3
B. 5
C. \(\LARGE \frac{8}{7} \)
D. \( \sqrt{2} \)
Correct Option: B. 5
Question 2: তলৰ কোনটো পৰিমেয় সংখ্যা? (Which of the following is a rational number?)
A. \(3 \sqrt{2} \)
B. \( \sqrt{3} \)
C. \( \LARGE \frac{3}{5} \)
D. π
Correct Option: C. \( \frac{3}{5} \)
Question 3: তলৰ কোনটো সংখ্যা অপৰিমেয় নহয়? (Which of the following is not an irrational number?)
A. \( \frac{1}{\sqrt{2}} \)
B. 2π
C. \( \sqrt{17} \)
D. \( \sqrt{16} \)
Correct Option: D. \( \sqrt{16} \)
Since, \( \sqrt{16} \)=\( \sqrt{4^2} \)=4
Question 4: তলৰ কোনটো সংখ্যা পৰিমেয় নহয়? (Which of the following is not a rational number?)
A. 1.5
B. \( 1.63\overline{63} \)
C. \( 0.023\overline{3} \)
D. 1.020020002...
Correct Option: D. 1.020020002...
Question 5: \( \sqrt{3} \) ৰ মান কোন দুটা অখণ্ড সংখ্যাৰ মাজত থাকিব? (Among which two integers does the value of  \( \sqrt{3} \) lie?)
A. 1 আৰু 2 (1 and 2)
B. 2 আৰু 3 (2 and 3)
C. 3 আৰু 4 (3 and 4)
D. 0 আৰু 1 (0 and 1)
Correct Option: A. 1 আৰু 2 (1 and 2)
Since, \( \sqrt{3}\approx1.73205080757\)
Question 6: তলৰ কোনটো সংখ্যা সংখ্যাৰেখাত \( \sqrt{5} \)ৰ সোঁফালে থাকিব? (Which of the following numbers will be to the right of \( \sqrt{5} \) on number line?)
A. \( \sqrt{3} \)
B. 2
C. -1
D. 3
Correct Option: D. 3
Since, \( \sqrt{5}\approx2.2360679775 \)
Question 7: \( \sqrt{3} \)ক তলৰ কোনটো সংখ্যাৰে পূৰণ কৰিলে পূৰণফলটো পৰিমেয় হ'ব? (Multiplying \( \sqrt{3} \) by which of the following numbers would become a rational number?) 
A. \( \sqrt{2} \)
B. \( \sqrt{3} \)
C. 2
D. 1
Correct Option: B. \( \sqrt{3} \)
Since, \( \sqrt{3} × \sqrt{3} \)=3
Question 8: \(\LARGE \frac{1.5}{2.35} \) সংখ্যাটো  (The number \(\LARGE \frac{1.5}{2.35} \) is a)
A. পৰিমেয় (Rational Number)
B. অপৰিমেয় (Irrational Number)
C. অখণ্ড (Integer)
D. স্বাভাৱিক (Natural Number)
Correct Option: A. পৰিমেয় (Rational Number)
Question 9: (√3+√2)(√3-√2) ৰ মান ( The value of (√3+√2)(√3-√2)  is)
A. 5
B. -1
C. 1
D. 0
Correct Option: C. 1
(√3+√2)(√3-√2)=(√3)²-(√2)²=3-2=1
Foumula: (a+b)(a-b)=a²-b²
Question 10: \((32)^{1/5}\) ৰ মান - (The value of \((32)^{1/5}\) is )
A. 3
B. 4
C. -2
D. 2
Correct Option: D. 2
\((32)^{\LARGE \frac{1}{5}}=(2^5)^{\LARGE \frac{1}{5}}\)=2
Question 11: আটাইতকৈ সৰু স্বাভাৱিক সংখ্যা কি? (What is the smallest natural number?)
A. 0
B. 1
C. -1
D. 2
Correct Option: B. 1
Since Natural Numbers start from 1,2,3,4,5,.......
Question 12: আটাইতকৈ সৰু পূৰ্ণ সংখ্যাটো হ'ল? (What is the smallest Whole Number?)
A. -1
B. 0
C. 1
D. 2
Correct Option: B. 0
Since Whole numbers start from 0,1,2,3,4,5,...
Question 13: যিকোনো দুটা প্ৰদত্ত অসমান পৰিমেয় সংখ্যাৰ মাজত কিমানটা পৰিমেয় সংখ্যা থাকে? (How many rational numbers are there between two given unequal rational numbers?)
A. অসংখ্য (Infinite)
B. সীমিত (Limited)
C. এটাও নাথাকে (Doesn't exist)
D. ওপৰৰ এটাও নহয় (None of the above)
Correct Option: A. অসংখ্য
Question 14: __ এনে এটা অশূন্য সংখ্যা যাৰ দ্বাৰা \( \sqrt{5} \)ক পূৰণ কৰিলে পূৰণফলটো এটা পৰিমেয় সংখ্যা হয়। (__ is a non-zero number by which the product of multiplying \( \sqrt{5} \)  it would result in a rational number.)
A. \( \sqrt{2} \)
B. \( \sqrt{5} \)
C. \( \sqrt{3} \)
D. 1
Correct Option: B. \( \sqrt{5} \)
Since, \( \sqrt{5} x \sqrt{5} \) = 5 (5 is rational number)
Question 15: __ এনে এটা অশূন্য সংখ্যা যাৰ দ্বাৰা \((5+ \sqrt{3}) \)ক পূৰণ কৰিলে পূৰণফলটো এটা পৰিমেয় সংখ্যা হয়। (__ is a non-zero number by which the product of multiplying  \((5+ \sqrt{3}) \) it would result in a rational number.)
A. \((5+ \sqrt{3}) \)
B. \((5+ \sqrt{2}) \)
C. \((5- \sqrt{2}) \)
D. \((5- \sqrt{3}) \)
Correct Option: \((5- \sqrt{3}) \)
Since, \((5+ \sqrt{3}) \)x\((5- \sqrt{3}) \)=\((5)^2- (\sqrt{3}^2) \)=25 - 3=22
Question 16: \( \sqrt{2} \) ৰ মান একেবাৰে নিকটৱৰ্তী কোন দুটা অখণ্ড সংখ্যাৰ মাজত থাকে? (Between which two consecutive integers does the value of \( \sqrt{2} \) lie?)
A. 1 আৰু 2 (1 and 2)
B. 2 আৰু 3 (2 and 3)
C. 3 আৰু 4 (3 and 4)
D. 0 আৰু 1 (0 and 1)
Correct Option: A. 1 আৰু 2 (1 and 2)
Since, \( \sqrt{2} \)=1.41421356.....
Question 17: প্ৰতিটো পৰিমেয় সংখ্যাই বাস্তৱ সংখ্যা? (Every rational number is a real number.)
A. সত্য (True)
B. অসত্য (False)
C. (A) আৰু (B) নহয় (Neither A nor B)
D. ওপৰৰ এটাও নহয় (None of the above)
Correct Option: A. সত্য (True)
কাৰণ, সকলো পৰিমেয় সংখ্যা বাস্তৱ সংখ্যাৰ সংহতিটোৰ অন্তৰ্ভুক্ত। (Because, every rational numbers is included in the set of real numbers.)
Question 18: প্ৰতিটো অপৰিমেয় সংখ্যাই বাস্তৱ সংখ্যা। (Every irrational number is a real number.)
A. সত্য (True)
B. অসত্য (False)
C. (A) আৰু (B) নহয় (Neither A nor B)
D. ওপৰৰ এটাও নহয় (None of the above)
Correct Option: A. সত্য (True)
কাৰণ, সকলো অপৰিমেয় সংখ্যা বাস্তৱ সংখ্যাৰ সংহতিটোৰ অন্তৰ্ভুক্ত। (Because every irrational numbers is included in the set of real numbers.)
Question 19: প্ৰতিটো স্বাভাৱিক সংখ্যাই অখণ্ড সংখ্যা। (Every natural number is an integer.)
A. সত্য (True)
B. অসত্য (False)
C. (A) আৰু (B) নহয় (Neither A nor B)
D. ওপৰৰ এটাও নহয় (None of the above)
Correct Option: A. সত্য (True)
কাৰণ, স্বাভাৱিক সংখ্যাৰ সংহতি {1,2,3,4,5,......}-টো অখণ্ড সংখ্যাৰ সংহতি {...,-2,-1,0,1,2,...}-টোৰ অন্তৰ্গত। (Because, the set of Natural numbers {1,2,3,4,5,.....} is included in the set of Integers {......,-2,-1,0,1,2,........}.
Question 20: দুটা নিৰ্দিষ্ট ভিন্ন অখণ্ড সংখ্যাৰ মাজত অসংখ্য অখণ্ড সংখ্যা থাকে। (Between two distinct Integers, there are infinitely many Intergers.)
A. সত্য (True)
B. অসত্য (False)
C. (A) আৰু (B) নহয় (Neither A nor B)
D. ওপৰৰ এটাও নহয় (None of the above)
Correct Option: B. অসত্য (False)
কাৰণ, দুটা নিৰ্দিষ্ট ভিন্ন অখণ্ড সংখ্যাৰ মাজত সসীম সংখ্যক অখণ্ড সংখ্যা থাকে। (Because, between two distinct Integers, there are finite numbers of Integers.)
Question 21: দুটা নিৰ্দিষ্ট অসমান স্বাভাৱিক সংখ্যাৰ মাজত অসীম সংখ্যক পৰিমেয় সংখ্যা থাকে। (There are infinitely many rational numbers between two distinct unequal natural numbers.)
A. সত্য (True)
B. অসত্য (False)
C. (A) আৰু (B) নহয় (Neither A nor B)
D. ওপৰৰ এটাও নহয় (None of the above)
Correct Option: A. সত্য (True)



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FAQs:
1. Where can I find Class 9 Maths MCQs chapter-wise?
Answer: You can find chapter-wise Class 9 Maths MCQs on Pi Assam, 

2. How can I access these Class 9 Maths Chapter 1 Number Systems MCQs?
Answer: You can access Class 9 Maths Chapterwise MCQs by simply visiting the  Pi Assam website.

3. Where can I access Class 9 Maths MCQs in both Assamese and English languages?
Answer: No problem, you can access Class 9 Maths Chapterwise MCQs in both Assamese and English language on Pi Assam.

4. How can solving Class 9 Maths MCQs benefit me in Class 9 Maths?
Answer: Solving Class 9 Maths Chapterwise MCQs offers several benefits, including an improved understanding of key concepts, enhanced problem-solving skills, familiarity with the exam pattern, increased confidence for assessments, and efficient revision of chapter content.

5. Are solutions provided with these MCQs?
Answer: Yes, Pi Assam offers Class 9 Maths Chapter 1 Number Sytems MCQs with detailed solutions or explanations. These solutions can help you understand the correct approach to solving each question, making your learning process more effective.

6. Can I practice these MCQs online?
Answer: Yes, Pi Assam provides online practice platforms where you can attempt Class 9 Maths MCQs and receive instant feedback on your performance. These platforms often track your progress and offer recommendations for improvement.

7. How do I know if the MCQs are in line with the latest SCERT/NCERT/CBSE syllabus?
Answer: Class 9 Maths MCQs you access are prepared as per the latest syllabus. Also, students should verify that the questions they access are by the latest syllabus to ensure their relevance and accuracy.

8. Are there any additional resources available for Class 9 Maths preparation?
Answer: Yes, in addition to MCQs, you can find a wealth of study materials, such as textbooks, video lectures, practice papers, and quizzes on Pi Assam, to further support your preparation for Class 9 Maths.

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