This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Mathematics > Cubes And Cube Roots > Class 8 Maths Chapter 7 Cubes And Cube Roots – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 7 Cubes And Cube Roots Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is 49 a perfect cube? A) Yes, it is. B) No, it isn't. C) All the above. D) None of the above. Show Answer Correct Answer: B) No, it isn't. 2. What is the cube root of 125? A) -25. B) 25. C) 5. D) -5. Show Answer Correct Answer: C) 5. 3. Is 225 a perfect square? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 4. Which of the following is a perfect cube? A) 81. B) 16. C) 25. D) 8. Show Answer Correct Answer: D) 8. 5. Find the cube root of 4913 A) 18. B) 17. C) 19. D) 16. Show Answer Correct Answer: B) 17. 6. WHAT IS THE CUBE ROOT OF 1331 A) 11. B) 31. C) 41. D) 21. Show Answer Correct Answer: A) 11. 7. WHILE FINDING THE CUBE ROOT OF 175616, NUMBER OF DIGITS IN THE OBTAINED ANSWER A) 3. B) 6. C) 2. D) 5. Show Answer Correct Answer: C) 2. 8. What is the one's digit in the cube root of the cube number 1728? A) 6. B) 4. C) 2. D) 1. Show Answer Correct Answer: C) 2. 9. Is 392 a perfect cube? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 10. Determine which is square root of 144 A) 12. B) 14. C) 11. D) 10. Show Answer Correct Answer: A) 12. 11. The minimum number of times a prime factor appears in a perfect cube is ..... A) 3. B) 1. C) 4. D) 2. Show Answer Correct Answer: A) 3. 12. What is the cube root of 64? A) 4. B) 3. C) 6. D) 5. Show Answer Correct Answer: A) 4. 13. Find the smallest natural number by which392 must be multiplied so that the product is a perfect cube. A) 2. B) 3. C) 5. D) 7. Show Answer Correct Answer: D) 7. 14. Sum of 3 and 5 is cube of A) 4. B) 2. C) 1. D) 3. Show Answer Correct Answer: B) 2. 15. List the perfect cubes that are between 100 and 600 A) 125, 216, 512. B) 125, 343, 512. C) 125, 216, 343, 512. D) 64, 125, 216, 343, 512, 729. Show Answer Correct Answer: C) 125, 216, 343, 512. 16. The cube root of 13824 is ..... A) 24. B) 25. C) 16. D) 36. Show Answer Correct Answer: A) 24. 17. If a number ending with digits 2 and their cubes end with ..... A) 7. B) 2. C) 8. D) 5. Show Answer Correct Answer: C) 8. 18. The number 512 is a perfect cube because 512 = 8$^{3}$.Which number below is also a perfect cube? A) 125. B) 150. C) 256. D) 300. Show Answer Correct Answer: A) 125. 19. Find which of the following numbers are not cubes of rational numbers: A) 27/64. B) 125/128. C) 0.001331. D) None of the above. Show Answer Correct Answer: B) 125/128. 20. Must be divided by ..... to make it a perfect cube A) 3. B) 9. C) 7. D) 11. Show Answer Correct Answer: A) 3. 21. What is the sum of the first four odd natural numbers? A) 16. B) 18. C) 17. D) 20. Show Answer Correct Answer: A) 16. 22. What must be multiplied to 243 so that it becomes a perfect cube? A) 6. B) 3. C) 9. D) 5. Show Answer Correct Answer: B) 3. 23. The number whose cube is-8 is A) -1. B) 2. C) -2. D) 3. Show Answer Correct Answer: C) -2. 24. If a number p is doubled, then its cube becomes ..... times the cube of the given number. A) 2. B) 4. C) 10. D) 8. Show Answer Correct Answer: D) 8. 25. Hardy-Ramanujan Number is ..... A) 1729. B) 1727. C) 1728. D) 1700. Show Answer Correct Answer: A) 1729. 26. Which of the following is a cube number? A) 10. B) 64. C) 50. D) 27. Show Answer Correct Answer: D) 27. 27. Apala makes a cuboid of plasticine of sides 5 cm, 4 cm, 2 cm. How many such cuboids will be needed to form a cube? A) 16. B) 25. C) 20. D) 10. Show Answer Correct Answer: B) 25. 28. Find the cube root of-1, 331: A) -121. B) -11. C) -443.67. D) None of the above. Show Answer Correct Answer: B) -11. 29. Cuberoot of 512 is A) 4. B) 6. C) 8. D) 12. Show Answer Correct Answer: C) 8. 30. Which of the following is not a perfect cube? A) 1. B) 8. C) 27. D) 4. Show Answer Correct Answer: D) 4. 31. $3_{\sqrt{\frac{729}{1000}}}$ A) 8/10. B) 9/10. C) 7/1000. D) 9/100. Show Answer Correct Answer: B) 9/10. 32. The cube of a single digit number may be a single digit number. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 33. The cube root of 1.331 is A) 0.11. B) 1.1. C) 11. D) 0.011. Show Answer Correct Answer: B) 1.1. 34. Difference of two perfect cube is 602. If the cube root of the greater of two numbers is 11, find the cube root of the smaller number. A) 6. B) 8. C) 9. D) 3. Show Answer Correct Answer: C) 9. 35. Which number is both a perfect square and a perfect cube? A) 81. B) 27. C) 64. D) 16. Show Answer Correct Answer: C) 64. 36. The cube root of 49 x (-3584) is A) 48. B) -56. C) 56. D) -48. Show Answer Correct Answer: B) -56. 37. What is the least number by which 13720 must be divided so that the quotient is a perfect cube? A) 2. B) 6. C) 3. D) 5. Show Answer Correct Answer: D) 5. 38. Cubing a number means multiplying a number by itself 3 times. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. We get a cube of a number if we multiply a number by its square. A) True. B) False. C) Cannot be determined. D) None of the above. Show Answer Correct Answer: A) True. 40. Find the smallest number which must be divided to obtai the perfect cobe of 704 A) 11. B) 3. C) 2. D) 5. Show Answer Correct Answer: A) 11. 41. Find the cube of (-21). A) -63. B) -9261. C) -42. D) 9261. Show Answer Correct Answer: B) -9261. 42. Which number is a perfect cube? A) 125. B) 122. C) 323. D) 622. Show Answer Correct Answer: A) 125. 43. Find the length of each side of the cube, if its volume is 2, 197 cm$^{3}$. A) 23. B) 21. C) 13. D) 31. Show Answer Correct Answer: C) 13. 44. Find the smallest number by which the number 88 must be divided to obtain a perfect cube. A) 5. B) 7. C) 9. D) 11. Show Answer Correct Answer: D) 11. 45. Determine which is perfect square? A) 21. B) 36. C) 43. D) 54. Show Answer Correct Answer: B) 36. 46. Squaring a number means multiplying a number by itself. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 47. Evaluate. 8$^{3}$ A) 43. B) 512. C) 398. D) 764. Show Answer Correct Answer: B) 512. 48. The area of a square painting is 81 cm$^{2}$. What is the side length of the painting? A) 9 cm. B) 162 cm. C) 40.5 cm. D) 6, 561 cm. Show Answer Correct Answer: A) 9 cm. 49. 1 is a perfect square and perfect cube A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 50. Cube of a positive number can be negative? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 51. $\left(0.05\right)^3=$ A) 0.000125. B) 0.0125. C) 0.125. D) None of the above. Show Answer Correct Answer: A) 0.000125. 52. $\left(-7\right)^3$ A) 49. B) -21. C) -343. D) 343. Show Answer Correct Answer: C) -343. 53. $^3\sqrt{\frac{1000}{343}}=$ A) 10/7. B) 10/49. C) 100/49. D) 100/7. Show Answer Correct Answer: A) 10/7. 54. By which number 8192 must be divided so that it becomes a perfect cube? A) 3. B) 1. C) 4. D) 2. Show Answer Correct Answer: D) 2. 55. Number obtained when a number is obtained by taking it three times is called A) Square number. B) Perfect cubes. C) Prime numbers. D) Perfect. Show Answer Correct Answer: B) Perfect cubes. 56. Estimate the cube root of 79507: A) 33. B) 63. C) 43. D) 53. Show Answer Correct Answer: C) 43. 57. The cubes of odd number is odd number. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 58. The one's digit of the cube of the number 144 is A) 3. B) 4. C) 2. D) 1. Show Answer Correct Answer: B) 4. 59. Cube root of 13824 A) 26. B) 24. C) 22. D) 23. Show Answer Correct Answer: B) 24. 60. A perfect cube does not end with two zeroes A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← PreviousNext →Related QuizzesMathematics QuizzesClass 8 QuizzesClass 8 Maths Chapter 7 Cubes And Cube Roots Quiz 1Class 8 Maths Chapter 7 Cubes And Cube Roots Quiz 3 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books