This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 1 Real Numbers – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 1 Real Numbers Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If one zero of the quadratic polynomial 2x$^{2}$+kx-15 is 3, then find the other zero A) 2/5. B) -5/2. C) -5. D) -2/5. Show Answer Correct Answer: B) -5/2. 2. The HCF of the smallest composite number and smallest prime number is A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 3. Which of the following is rational? A) $\sqrt{6}$ $\sqrt{9}$. B) $\sqrt{2}$ $\sqrt{4}$. C) $\sqrt{4}$ $\sqrt{9}$. D) $\sqrt{3}$ $\sqrt{9}$. Show Answer Correct Answer: C) $\sqrt{4}$ $\sqrt{9}$. 4. The HCF of 65 and 117 is: A) 1. B) 13. C) 15. D) 65. Show Answer Correct Answer: B) 13. 5. Ex 3. Simplify-3-11+7 A) -7. B) 7. C) All the above. D) None of the above. Show Answer Correct Answer: A) -7. 6. If a = 2$^{3}$ x 3, b= 2 x 3 x4, c = 3$^{n }$x 5and LCM (a, b, c) = 2$^{3 }$x 3$^{2}$x 5 then n = ..... A) 3. B) 2. C) 1. D) None of the above. Show Answer Correct Answer: B) 2. 7. The decimal expansion of 17/18 is A) 2.125. B) 1.251. C) 0.15. D) 2.152. Show Answer Correct Answer: A) 2.125. 8. The LCM of x and 18 is 36. The HCF is 2. Then x is ..... A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 9. Divide 7 by 12 to change $\frac{7}{12}$ $\frac{7}{12}=7\div12=$ A) $0.58$. B) $0.5\overline{83}$. C) $0.58\overline{3}$. D) None of the above. Show Answer Correct Answer: C) $0.58\overline{3}$. 10. Irrational number means A) Neitherterminating nor repeating. B) Either repeating or terminating. C) All the above. D) None of the above. Show Answer Correct Answer: A) Neitherterminating nor repeating. 11. Which of the following is irrational? A) 0.15. B) 0.01516. C) $0.\overline{01516}$. D) 0.501500150001 . Show Answer Correct Answer: D) 0.501500150001 . 12. Classify this number:2 A) Real. B) Real rational. C) Real rational integer. D) Real rational integer whole. Show Answer Correct Answer: D) Real rational integer whole. 13. LCM of the given number 'x' and 'y' where y is a multiple of 'x' is given by A) Y. B) Xy. C) X. D) X/y. Show Answer Correct Answer: A) Y. 14. Which option is RATIONAL A) $0.\overline{7}$. B) $\sqrt{2}$. C) All the above. D) None of the above. Show Answer Correct Answer: A) $0.\overline{7}$. 15. Classify this number:6.7 A) Real. B) Real rational. C) Real rational integer. D) Real rational integer whole natural. Show Answer Correct Answer: B) Real rational. 16. True or false? All whole numbers are integers. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. HCF of smallest prime and smallest composite number A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 18. Pick the correct set and why $0.\overline{4}$ A) RationalRepeating decimal. B) RationalTerminating decimal. C) Irrational, Repeating decimal. D) IrrationalTerminating decimal. Show Answer Correct Answer: A) RationalRepeating decimal. 19. Which number is irrational? A) 0. B) -12. C) $\pi$. D) $\frac{3}{4}$. Show Answer Correct Answer: C) $\pi$. 20. $\frac{2}{3}$ A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. A plastic bin contains red, yellow, and green key chains. Out of 350 key chains, 10% percent are yellow. Of the remaining key chains, 3/5 are green. How many red key chains are inside the bin? A) 26. B) 35. C) 126. D) 189. Show Answer Correct Answer: C) 126. 22. The decimal expansion of 7/8 is: A) Terminating. B) Non-terminating repeating. C) Non-terminating non-repeating. D) None of these. Show Answer Correct Answer: A) Terminating. 23. Three bells ring at an interval of 48, 60, 72 min. If they start ringing together after how much time will they ring together next. A) 72 min. B) 12 min. C) 60 min. D) 1440. Show Answer Correct Answer: D) 1440. 24. Jeremy says that 5.676677666777 ..... is a rational number because it is a decimal that goes on forever with a pattern.Is he correct?Why or why not? A) Yes, because the decimal is repeating. B) No, because it is an integer. C) No, because a pattern is not a repeating decimal. D) None of the above. Show Answer Correct Answer: C) No, because a pattern is not a repeating decimal. 25. $\sqrt{16}$ A) Irrational numbers. B) Whole number. C) All the above. D) None of the above. Show Answer Correct Answer: B) Whole number. ← PreviousNext →Related QuizzesClass 10 Maths Chapter 1 Real Numbers Quiz 1Class 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 10Class 10 Maths Chapter 1 Real Numbers Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books