If you’re looking for a way to enhance your Class 8 Maths, then look no further than the NCERT MCQ Questions for Class 8 Maths Chapter 1 Rational Numbers with Answers. The MCQ Questions for Class 8 Maths with Answers are aligned to all topics covered so it will be helpful when preparing for your exams, no matter what subject you’re studying! Don’t forget about scoring maximum points during exam preparation by using these free Class 8 Maths Chapter 1 Rational Numbers Objective Questions.
Rational Numbers Class 8 MCQs Questions with Answers
What are you waiting for? Get all the answers to Class 8 Maths Chapter 1 MCQs! It’s time that students power up and start practicing these MCQ Questions of Rational Numbers Class 8 with answers. The best way of doing so would be solving them yourself in order not only to know which answer is correct but also to understand why each solution works as well.
Question 1.
Which of the following forms a pair of equivalent rational numbers?
(a) \(\frac { 24 }{ 40 }\) and \(\frac { 35 }{ 50 }\)
(b) \(\frac { -25 }{ 35 }\) and \(\frac { 55 }{ -77 }\)
(c) \(\frac { -8 }{ 15 }\) and \(\frac { -24 }{ 48 }\)
(d) \(\frac { 9 }{ 72 }\) and \(\frac { -3 }{ 21 }\)
Answer
Answer: (b) \(\frac { -25 }{ 35 }\) and \(\frac { 55 }{ -77 }\)
Question 2.
Which number is in the middle if \(\frac { -1 }{ 6 }\), \(\frac { 4 }{ 9 }\), \(\frac { 6 }{ -7 }\), \(\frac { 2 }{ 5 }\) and \(\frac { -3 }{ 4 }\) arranged in descending order?
(a) \(\frac { 2 }{ 5 }\)
(b) \(\frac { 4 }{ 9 }\)
(c) \(\frac { -1 }{ 6 }\)
(d) \(\frac { -6 }{ 7 }\)
Answer
Answer: (c) \(\frac { -1 }{ 6 }\)
Question 3.
Find the multiplicative inverse of -13.
(a) 13
(b) -13
(c) \(\frac { -1 }{ 13 }\)
(d) 12
Answer
Answer: (c) \(\frac { -1 }{ 13 }\)
Question 4.
Which of the following statements is true?
(a) Every fraction is a rational number.
(b) Every rational number is a fraction.
(c) Every integer is a rational number.
(d) Both (a) and (c).
Answer
Answer: (d) Both (a) and (c).
Question 5.
Which of the following is the identity element under addition?
(a) 1
(b) -1
(c) 0
(d) None of these
Answer
Answer: (c) 0
Question 6.
What is the additive inverse of \(\frac { -2 }{ 3 }\)?
(a) 0
(b) 1
(c) \(\frac { 2 }{ 3 }\)
(d) \(\frac { -2 }{ 3 }\)
Answer
Answer: (c) \(\frac { 2 }{ 3 }\)
Question 7.
Write the additive inverse of \(\frac { 4 }{ 5 }\).
(a) 1
(b) \(\frac {-4 }{ 5 }\)
(c) \(\frac { 4 }{ 5 }\)
(d) 0
Answer
Answer: (b) \(\frac {-4 }{ 5 }\)
Question 8.
Which among the following is a rational number equivalent to \(\frac { -5 }{ -3 }\) ?
(a) \(\frac { -25 }{ 15 }\)
(b) \(\frac { 25 }{ -15 }\)
(c) \(\frac { 25 }{ 15 }\)
(d) \(\frac { -25 }{ 30 }\)
Answer
Answer: (c) \(\frac { 25 }{ 15 }\)
Question 9.
Which of the following is the reciprocal of the reciprocal of a rational number?
(a) -1
(b) 1
(c) 0
(d) The number itself
Answer
Answer: (d) The number itself
Question 10.
How is \(\frac { -28 }{ 84 }\) expressed as a rational number with numerator 4?
(a) \(\frac { 4 }{ 7 }\)
(b) \(\frac { -4 }{ 12 }\)
(c) \(\frac { 4 }{ 12 }\)
(d) \(\frac { 4 }{ -7 }\)
Answer
Answer: (b) \(\frac { -4 }{ 12 }\)
Question 11.
The value of \(\frac { 1 }{ 2 }\) × \(\frac { 3 }{ 5 }\) is equal to:
(a) \(\frac { 1 }{ 2 }\)
(b) \(\frac { 3 }{ 10 }\)
(c) \(\frac { 3 }{ 5 }\)
(d) \(\frac { 2 }{ 5 }\)
Answer
Answer: (b) \(\frac { 3 }{ 10 }\)
Question 12.
What should be subtracted from \(\frac { -7 }{ 11 }\) to get −2?
(a) \(\frac { 15 }{ 11 }\)
(b) \(\frac { -15 }{ 11 }\)
(c) \(\frac { 29 }{ 11 }\)
(d) \(\frac { -29 }{ 11 }\)
Answer
Answer: (a) \(\frac { 15 }{ 11 }\)
Question 13.
Which of the following is the Multiplicative identity for rational numbers?
(a) 1
(b) -1
(c) 0
(d) None of these
Answer
Answer: (a) 1
Question 14.
________ is not associative for rational numbers.
(a) Subtraction or Division
(b) Addition or Multiplication
(c) Addition or Division
(d) Multiplication or Division
Answer
Answer: (a) Subtraction or Division
Question 15.
Which of the following is the Multiplicative identity for rational numbers?
(a) 1
(b) -1
(c) 0
(d) None of these
Answer
Answer: (a) 1
Question 16.
A number which can be written in the form, p/q where p and q are integers and _____ is called a rational number.
(a) q = 0
(b) q ≠ 0
(c) q = 1
(d) none of these
Answer
Answer: (b) q ≠ 0
Question 17.
The value of \(\frac { 1 }{ 2 }\) + \(\frac { 1 }{ 4 }\) is equal to:
(a) \(\frac { 3 }{ 4 }\)
(b) \(\frac { 3 }{ 2 }\)
(c) \(\frac { 2 }{ 3 }\)
(d) 1
Answer
Answer: (a) \(\frac { 3 }{ 4 }\)
Question 18.
Find the multiplicative inverse of \(\frac { 1 }{ 4 }\).
(a) 4
(b) \(\frac { -1 }{ 4 }\)
(c) -4
(d) \(\frac { 1 }{ 4 }\)
Answer
Answer: (a) 4
Question 19.
Which of the following is the reciprocal of a rational number?
(a) -1
(b) 1
(c) 2
(d) Both a and b
Answer
Answer: (d) Both a and b
Question 20.
What is the sum of the additive inverse and multiplicative inverse of 2?
(a) \(\frac { 3 }{ 2 }\)
(b) \(\frac { -3 }{ 2 }\)
(c) \(\frac { 1 }{ 2 }\)
(d) \(\frac { -1 }{ 2 }\)
Answer
Answer: (b) \(\frac { -3 }{ 2 }\)
Question 21.
Which of the following statements is true?
(a) Every fraction is a rational number.
(b) Every rational number is a fraction.
(c) Every integer is a rational number.
(d) Both (a) and (c).
Answer
Answer: (d) Both (a) and (c).
Question 22.
Find the reciprocal of -2.
(a) 2
(b) -2
(c) \(\frac { -1 }{ 2 }\)
(d) None of these
Answer
Answer: (c) \(\frac { -1 }{ 2 }\)
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