This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 1 Real Numbers – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 1 Real Numbers Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Mrs. Evans has 120 crayons and 30 pieces of paper to give to her students. What is the largest number of students she can have in her class so that each student gets equal number of crayons and equal number of paper.Problem can be solved using A) LCM. B) HCF. C) None. D) None of the above. Show Answer Correct Answer: B) HCF. 2. The sum of one rational and one irrational number is always A) Rationale. B) Irrational. C) Positive. D) Zero. Show Answer Correct Answer: B) Irrational. 3. The decimal representation of $\frac{11}{2^3\\times5}$ A) Terminate after 1 decimal place. B) Terminate after 2 decimal place. C) Terminate after 3 decimal place. D) Not terminate. Show Answer Correct Answer: C) Terminate after 3 decimal place. 4. Can a real number be both rational and irrational? Justify your answer. A) Yes, a real number can be both rational and irrational. B) No, a real number cannot be both rational and irrational. C) Some real numbers can be both rational and irrational depending on context. D) A real number can be rational in one instance and irrational in another. Show Answer Correct Answer: B) No, a real number cannot be both rational and irrational. 5. Which set is in descending order? A) 15% .45 9/10. B) .45 15% 9/10. C) 9/10 15% .45. D) 9/10 .45 15%. Show Answer Correct Answer: D) 9/10 .45 15%. 6. The HCF of two numbers is 23 and their LCM is 1449. If one of the numbers is 161, then the other number is A) 23. B) 207. C) 1449. D) None of these. Show Answer Correct Answer: B) 207. 7. Put the rational numbers in order from least to greatest.-4.2, -4$^{1}$/$_{2}$, -4, 0, 4 A) $^{0, -4 1/2, -4.2, 4, -4}$. B) $^{-4 1/2, -4.2, -4, 0, 4}$. C) $^{-4 1/2, -4.2, -4, 4, 0}$. D) -4.2, -4 1/2-4, 0, 4. Show Answer Correct Answer: B) $^{-4 1/2, -4.2, -4, 0, 4}$. 8. Is a rational number A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Name the set or sets to which each real number belongs. $\frac{20}{7}$ A) Natural Number. B) Whole Number. C) Integer. D) Rational. E) Irrational. Show Answer Correct Answer: D) Rational. 10. Three traffic lights along a stretch of road will turn red at fixed time intervals of 1 minute, 1 minute10 seconds and 1 minute 18 seconds respectively. There are occasions when all three traffic lights willturn red simultaneously. If all of the traffic lights turned red simultaneously at 09 15, find the next time when they will turn red simultaneously again.Problem can be solved using A) HCF. B) LCM. C) All the above. D) None of the above. Show Answer Correct Answer: B) LCM. 11. Classify the following:0.478123123123123123 ..... A) Rational. B) Irrational. C) All the above. D) None of the above. Show Answer Correct Answer: A) Rational. 12. If two positive integers x and y are expressible in terms of primes as x = $p^2q^3$ $p^3q$ A) LCM = $p^3q^3$ $p^2q$. B) LCM = $pq^3$ $p^2q$. C) LCM = $p^3q^3$ $p^2q$. D) LCM = $pq^3$ $p^2q$. Show Answer Correct Answer: A) LCM = $p^3q^3$ $p^2q$. 13. If LCM of 6 and 20 is x and HCF of 6 and 20 is y then find $x+y$ A) 60. B) 61. C) 62. D) 63. Show Answer Correct Answer: C) 62. 14. A repeating decimal is what type of number? A) Rational. B) Irrational. C) All the above. D) None of the above. Show Answer Correct Answer: A) Rational. 15. What is the best classification for this number? 0 A) Natural. B) Whole. C) Integer. D) Rational. Show Answer Correct Answer: B) Whole. 16. The LCM of smallest two-digit composite number and smallest composite number is ..... A) 40. B) 2. C) 10. D) 20. Show Answer Correct Answer: D) 20. 17. L.C.M. of x$^{2}$ + x-12 and x$^{2}$-9 is A) (x + 3)(x + 4). B) (x-3)(x + 4). C) (x-3)(x + 3)(x + 4). D) X-3. Show Answer Correct Answer: C) (x-3)(x + 3)(x + 4). 18. If the area of a square is 81cm$^{2}$, what is the side length? A) 9cm. B) 81cm. C) 3cm. D) 9cm$^{2}$. Show Answer Correct Answer: A) 9cm. 19. When a number is divided by 7, its remainder is always: A) Greater than 7. B) At least 7. C) Less than 7. D) At most 7. Show Answer Correct Answer: C) Less than 7. 20. The LCM of 24 and 36 is: A) 72. B) 144. C) 12. D) 48. Show Answer Correct Answer: A) 72. 21. Which list is in order from least to greatest? A) $\pi+10, \\sqrt{20}+\frac{1}{2}, \\sqrt{100}$. B) $\sqrt{100}, \\pi+10, \\sqrt{20}+\frac{1}{2}$. C) $\sqrt{20}+\\frac{1}{2}, \\sqrt{100}, \\pi+10$. D) None of the above. Show Answer Correct Answer: C) $\sqrt{20}+\\frac{1}{2}, \\sqrt{100}, \\pi+10$. 22. Devon does 3 math problems every 2 minutes. At this rate, how many math problems will he do in 1 hour (60 minutes)? A) 90 questions. B) 50 questions. C) 10 questions. D) 14 questions. Show Answer Correct Answer: A) 90 questions. 23. A non-repeating or non-terminating decimal is classified as ..... A) Rational, real. B) Irrational, real. C) Integer, rational, real. D) Whole, integer, irrational, real. Show Answer Correct Answer: B) Irrational, real. 24. What is the most specific set for $-9$ A) Natural. B) Whole. C) Integer. D) Rational. E) Irrational. Show Answer Correct Answer: C) Integer. 25. The greatest number which divides 281 and 1249, leaving the remainder 5 and 7 respectively, is: A) 23. B) 276. C) 138. D) 69. Show Answer Correct Answer: C) 138. ← 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