Master Number System with our comprehensive collection of ECAT Mathematics MCQs. Each question is designed to test your understanding of key concepts including Real Numbers, Complex Numbers, Rational & Irrational, Absolute Value. Whether you're preparing for ECAT 2026 or revising for your board exams, these chapter-wise MCQs with detailed explanations will help you score higher.
We have carefully curated MCQs from Chapter 1 (Number System) following the official ECAT 2026 syllabus. Each question comes with the correct answer and detailed explanation.
Practice Mathematics MCQs Now Take Full ECAT Mock TestBelow are important MCQs from ECAT Mathematics Chapter 1 (Number System). Each question includes the correct answer highlighted in green and a detailed explanation to help you understand the concept.
Natural numbers (N) = counting numbers starting from 1: {1,2,3,4,...}. No zero, negatives, or fractions.
Absolute value |x| = distance from 0, always non-negative. |-7| = 7.
sqrt(2) = 1.41421... is irrational (non-terminating, non-repeating decimal, cannot be expressed as p/q).
i = sqrt(-1), so i^2 = -1. This is the fundamental property of complex numbers.
Conjugate of a+bi is a-bi. So conjugate of 3+4i = 3-4i. Product of conjugates is always real.
sqrt(a) x sqrt(b) = sqrt(ab). So sqrt(2) x sqrt(3) = sqrt(6).
Absolute value >= 0 always. Since -5 < 0, no solution exists.
Rational numbers = p/q where p,q are integers and q != 0. Examples: 1/2, -3/4, 5 (=5/1).
Modulus of a+bi = sqrt(a^2+b^2). |3+4i| = sqrt(9+16) = sqrt(25) = 5.
Pi = 3.14159... is irrational (infinite, non-repeating decimal). 22/7 is only an approximation.
Our full question bank has 100+ MCQs for this chapter alone. Practice in quiz mode with instant scoring, timer, and detailed performance analytics.
Start Full Quiz ModeNumber System is a fundamental chapter in ECAT Mathematics. This chapter covers the following important topics that frequently appear in the ECAT exam:
By practicing these MCQs, you will develop a strong understanding of Number System concepts and be well-prepared for the ECAT 2026 exam.
Follow these expert tips to master Number System and score maximum marks in ECAT:
Based on analysis of past ECAT papers, these topics from Chapter 1 (Number System) are most frequently tested:
This Mathematics chapter is also tested in other Pakistani entry tests. Practice the same topics with exam-specific focus:
In ECAT, Mathematics typically has 100 total MCQs. Chapter 1 (Number System) usually contributes 3-5 MCQs in the actual exam. On Apna MCQs, we provide 10+ practice MCQs with detailed explanations for thorough preparation.
Yes! All MCQs on Apna MCQs are updated according to the latest Various Universities ECAT 2026 syllabus. Our team of expert educators regularly reviews and adds new questions based on the latest exam patterns and past papers.
Our Number System MCQs cover all important topics including Real Numbers, Complex Numbers, Rational & Irrational and more. Each topic has multiple MCQs ranging from easy to hard difficulty to ensure comprehensive preparation.
To prepare Number System for ECAT: 1) Read the textbook thoroughly, 2) Make notes of key concepts, 3) Practice MCQs on Apna MCQs with explanations, 4) Take mock tests, 5) Review weak areas. Our chapter-wise approach ensures you cover all 21 chapters systematically.
After completing Chapter 1, move to the next chapter on Apna MCQs. We cover all 21 chapters of Mathematics with chapter-wise MCQs. You can also take full-length ECAT mock tests for timed practice.
Our MCQs include questions modeled on ECAT past papers as well as original questions created by subject experts. The questions cover all topics in Number System that are part of the official ECAT syllabus.
Absolutely! While these MCQs are organized for ECAT preparation, the content covers the same Mathematics Chapter 1 (Number System) topics tested in FSc/Inter board exams. Many students use Apna MCQs for both board and entry test preparation.
Yes! Apna MCQs provides free access to chapter-wise MCQs for MDCAT, ECAT, LAT, IBA, Nursing and other entry tests. We believe quality education should be accessible to every student in Pakistan.
