Table of Contents
- Time Limit: You have 15 minutes to complete the quiz.
- Multiple Choice: Each question comes with several answer options.
- One Correct Answer: Only one option is correct for each question.
- No Negative Marking: There is no penalty for wrong answers.
Class 9 Maths Chapter 1 Real Numbers Quiz Questions
Welcome to the quiz on Chapter 1 – Real Numbers from your Class 9 Maths syllabus. This chapter explores the fundamentals of number systems and lays the foundation for your understanding of mathematical concepts. From natural numbers, whole numbers, and integers to rational and irrational numbers, this quiz will test your ability to recognize and apply the various types of numbers in different contexts. Let’s see how well you’ve grasped the basics and sharpen your mathematical skills. Get ready to challenge yourself and dive into the world of numbers!
Class 9 Maths Chapter 1 Real Number Of Life Quiz 1
Ques: Among the following, a non-terminating recurring decimal is:
a) 12
b) 23
c) 34
d) 45
Answer:
Correct option is B.
Explanation: 23 = 0.666… = 6̅, hence it is a non-terminating recurring decimal.
Ques: The number 0.45454545….. is:
a) a natural number
b) an integer
c) an irrational number
d) a rational number
Answer:
Correct option: d) a rational number
Explanation: Since the given decimal is non-terminating and recurring, it is a rational number.
Ques: State whether the given statement is true/false:
9 is an irrational number.
a) True
b) False
Answer:
Correct Answer: False
Explanation: A number is called irrational if it cannot be expressed as a ratio of two integers (p/q). Since 9 can be written as 9/1, it is a rational number.
Ques: If 80 = 5k, then find the value of k.
a) 15
b) 16
c) 17
d) 18
Answer:
Correct Answer: 16
Explanation: Solving 80 = 5k gives k = 80/5 = 16.
Ques: The expression is:
a) Rational
b) Irrational
c) Real number
d) None of these
Answer:
Correct Answer: B
Explanation: Given expression is an irrational number because it contains an irrational component. Thus, the expression is irrational.
Ques: The period in ̅0.26 is?
a) 62
b) 2
c) 26
d) 6
Answer:
Correct Answer: c) 26
Explanation: The recurring part of a non-terminating recurring decimal is known as the period. In ̅0.26, the period is 26.
Ques: Periodicity in Decimal Form of 1/7
a) 4
b) 12
c) 6
d) 14
Answer:
Correct Answer: c) 6
Explanation: 1/7=0.142857142857…., the periodicity is 6.
Ques: Statement (A): The recurring part of the non-terminating recurring decimal is called period.
Statement (B): The number of digits in the recurring part of non-terminating recurring decimal is called periodicity.
a) Statement A is True, Statement B is True
b) Statement A is False, Statement B is False
c) Statement A is True, Statement B is False
d) Statement A is False, Statement B is True
Answer:
Statement (A): True
Statement (B): True
Ques: The period in the decimal form of 4/3 is
a) 1
b) 2
c) 3
d) 4
Answer:
Correct option: A
4/3 = 1.333….. = 1.3̅, here period is 3.
Ques: The periodicity in the decimal form of 11/27 is
a) 3
b) 6
c) 470
d) 407
Answer:
Correct option: A
11/27=0.407407…..=0.407, the periodicity is 3.
Ques: The period and periodicity respectively in the decimal form of 8/11 is
a) 2 and 72
b) 72 and 2
c) 2 and 27
d) 3 and 727
Answer:
Correct option: B
8/11=0.727272…….=0.72. Here, period = 72 and periodicity = 2.
