This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 1 Real Numbers – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 1 Real Numbers Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the product of a rational and an irrational number? A) Always an integer. B) Always a rational number. C) Always an irrational number. D) Sometimes rational and sometimes irrational. Show Answer Correct Answer: C) Always an irrational number. 2. For some integer p, every even integer is of the form A) 2p + 1. B) 2p. C) P + 1. D) P. Show Answer Correct Answer: B) 2p. 3. Solve the equation 2x + 5 = 11 for x A) X = 2. B) X = 4. C) X = 6. D) X = 3. Show Answer Correct Answer: D) X = 3. 4. The ratio between the LCM and HCF of 5, 15, 20 is: A) 9:1. B) 4:3. C) 11:1. D) 12:1. Show Answer Correct Answer: D) 12:1. 5. Which of the following is NOT a subset of the rational numbers? A) Integers. B) Whole Numbers. C) Perfect square integers. D) Irrational numbers. Show Answer Correct Answer: D) Irrational numbers. 6. Irrational numbers are closed under addition. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 7. The square root of 5 is between what two integers? A) 4 and 5. B) 2 and 3. C) 3 and 4. D) 9 and 10. Show Answer Correct Answer: B) 2 and 3. 8. Is a A) Irrational number. B) Rational number. C) Integer. D) None of the above. Show Answer Correct Answer: B) Rational number. 9. Which of the following has a non-terminating, repeating decimal representation? A) 1/7. B) 2/5. C) 3/8. D) 4/25. Show Answer Correct Answer: A) 1/7. 10. Is-15/-5 a natural number? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 11. Which word does NOT describe 5? A) Whole. B) Integer. C) Rational. D) Irrational. Show Answer Correct Answer: D) Irrational. 12. Mrs. Nelson collects figurines that each weigh $2^{-2}$ $2^7$ A) $\frac{1}{2^{14}}\pounds$. B) $\frac{2^7}{2^2}\pounds$. C) $\left(2\right)^7\left(2\right)^{-2}\pounds$. D) $2^5\pounds$. Show Answer Correct Answer: A) $\frac{1}{2^{14}}\pounds$. 13. To enhance the reading skills of grade X students, the school nominates you and two of your friends to set up a class library.There are two sections.-Section A and Section B of grade X.There are 32 students in Section A and 36 students in Section B.Based on the above information answer the following questions.If teh product of two positive is equal to the product of their HCF and LCM is true, then HCF(32, 36) is A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: B) 4. 14. Zero is a ..... A) Whole number. B) Natural number. C) Whole number, integer, and rational. D) Irrational. Show Answer Correct Answer: C) Whole number, integer, and rational. 15. Multiply:$\left(4+\sqrt{2}\right)\left(4-\sqrt{2}\right)$ A) $16-\sqrt{2}$. B) $4-\sqrt{2}$. C) 14. D) 18. Show Answer Correct Answer: C) 14. 16. $3\sqrt[]{2}$ A) Rational. B) Irrational. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irrational. 17. Ex 2. Subtract-11-5 A) -16. B) 16. C) -6. D) 6. Show Answer Correct Answer: A) -16. 18. The decimal expansion of 22/7 is A) Terminating. B) Non-terminating and repeating. C) Non-terminating and Non-repeating. D) None of the above. Show Answer Correct Answer: B) Non-terminating and repeating. 19. What property is this?(n+13) + 4 = n + (13+4) A) Associative Property. B) Commutative Property. C) Additive Identity. D) Distributive Property. Show Answer Correct Answer: A) Associative Property. 20. The LCM & HCF of two rational numbers are equal then the numbers must be: A) Prime. B) Composite. C) Not equal. D) Equal. Show Answer Correct Answer: D) Equal. 21. If a = 4 and c = (-1/2), find c/a. A) -2. B) 2. C) -1/8. D) 1/8. Show Answer Correct Answer: C) -1/8. 22. The number 100 is a perfect square. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. Find the largest number which divides 70 and 125 leaving remainder 5 and 8 respectively. (2015) A) 25. B) 13. C) 125. D) 70. Show Answer Correct Answer: B) 13. 24. $5-\sqrt[]{3}$ A) Rational. B) Irrational. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irrational. 25. The product of H.C.F and L.C.M of the smallest prime number and the smallest composite number is A) 4. B) 6. C) 8. D) 10. Show Answer Correct Answer: C) 8. ← PreviousNext →Related QuizzesClass 10 Maths Chapter 1 Real Numbers Quiz 1Class 10 Maths Chapter 1 Real Numbers Quiz 2Class 10 Maths Chapter 1 Real Numbers Quiz 3Class 10 Maths Chapter 1 Real Numbers Quiz 4Class 10 Maths Chapter 1 Real Numbers Quiz 5Class 10 Maths Chapter 1 Real Numbers Quiz 6Class 10 Maths Chapter 1 Real Numbers Quiz 7Class 10 Maths Chapter 1 Real Numbers Quiz 8Class 10 Maths Chapter 1 Real Numbers Quiz 9Class 10 Maths Chapter 1 Real Numbers Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books