All Courses
Get the App Signup / Login
Sign in Open App
Class 10 Exam  >  Class 10 Tests  >  Real Numbers : Test 2 - Class 10 MCQ

Real Numbers : Test 2 - Class 10 MCQ


Test Description

10 Questions MCQ Test - Real Numbers : Test 2

Real Numbers : Test 2 for Class 10 2024 is part of Class 10 preparation. The Real Numbers : Test 2 questions and answers have been prepared according to the Class 10 exam syllabus.The Real Numbers : Test 2 MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Real Numbers : Test 2 below.
Solutions of Real Numbers : Test 2 questions in English are available as part of our course for Class 10 & Real Numbers : Test 2 solutions in Hindi for Class 10 course. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free. Attempt Real Numbers : Test 2 | 10 questions in 20 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study for Class 10 Exam | Download free PDF with solutions
Real Numbers : Test 2 - Question 1
Save

The exponent of 2 in the prime factorisation of 144, is

Detailed Solution for Real Numbers : Test 2 - Question 1

The prime factorization of 144 is as follows:

144 = 2 × 2 × 2 × 2 × 3 × 3

⇒ 144 = 24 × 32

We know that the exponent of a number am is m.

∴ The exponent of 2 in the prime factorization of 144 is 4.

Real Numbers : Test 2 - Question 2
Save

The smallest number by which √27 should be multiplied so as to get a rational number is

Detailed Solution for Real Numbers : Test 2 - Question 2

If we multiply √3 we will get a perfect square 9 which is a rational number.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Real Numbers : Test 2 - Question 3
Save

The least number that is divisible by all numbers from 1 to 10 ( both inclusive ) is

Detailed Solution for Real Numbers : Test 2 - Question 3

Use concept of HCF and LCM.

Real Numbers : Test 2 - Question 4
Save

(n2 - 1) is divisible by 8, if n is
Real Numbers : Test 2 - Question 5
Save

The decimal expansion of the rational number [ 33 × 2-2 × 5-1 ] will terminate after
Detailed Solution for Real Numbers : Test 2 - Question 5

2 decimal places

Real Numbers : Test 2 - Question 6
Save

If the LCM of a and 18 is 36 and the HCF of a and 18 is 2, then a =
Detailed Solution for Real Numbers : Test 2 - Question 6

We know that for any two positive integers a and b, HCF (a, b) × LCM (a, b) = a × b.
Here LCM = 36, HCF = 2 and b = 18
Then, 2 × 36 = a × 18
a = (2 × 36) / 18
a = 4
 

Real Numbers : Test 2 - Question 7
Save

If a = 2³× 3, b = 2 × 3 × 5, c = 3n× 5 and LCM (a, b, c) = 2³ × 3² × 5, then n =
Detailed Solution for Real Numbers : Test 2 - Question 7

We know that LCM = Product of the greatest power of each prime factor, involved in the numbers. Since the power of 3 in LCM is 2, 

C = 3²× 5

Real Numbers : Test 2 - Question 8
Save

If the HCF of 65 and 115 is expressible in the form 65m - 117 , the value of m is 
Real Numbers : Test 2 - Question 9
Save

The smallest rational number by which 1/3 should be multiplied so that its decimal expansion

terminates after one place of decimal, is
Detailed Solution for Real Numbers : Test 2 - Question 9

Let x = p/q be a rational number, such that the prime factorization of q is of the form 2n 5m, where n,

m are non-negative integers. Then x has a decimal expansion which terminates.

So 1/3 should be multiplied by 3/10 so that it is in the form of 2n5m.

Real Numbers : Test 2 - Question 10
Save

The LCM and HCF of two rational numbers are equal, then the numbers must be
Detailed Solution for Real Numbers : Test 2 - Question 10

When numbers are equal, LCM and HCF of two rational numbers are equal.

Information about Real Numbers : Test 2 Page
In this test you can find the Exam questions for Real Numbers : Test 2 solved & explained in the simplest way possible. Besides giving Questions and answers for Real Numbers : Test 2, EduRev gives you an ample number of Online tests for practice

Top Courses for Class 10

Download as PDF

Top Courses for Class 10

Important Questions for Real Numbers : Test 2

Find all the important questions for Real Numbers : Test 2 at EduRev.Get fully prepared for Real Numbers : Test 2 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Real Numbers : Test 2 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Real Numbers : Test 2 resources.

Real Numbers : Test 2 MCQs with Answers

Prepare for the Real Numbers : Test 2 within the Class 10 exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Real Numbers : Test 2

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Real Numbers : Test 2 with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup