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 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 7 Cubes And Cube Roots Quiz 3 (46 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which least number must be multiplied to 3456 so that the product becomes a perfect cube? A) 3. B) 4. C) 6. D) 2. Show Answer Correct Answer: B) 4. 2. What is the cube root of 27? A) 3. B) 4. C) 2. D) 5. Show Answer Correct Answer: A) 3. 3. The number 1, 000 is a ..... A) Perfect square. B) Perfect cube. C) All the above. D) None of the above. Show Answer Correct Answer: B) Perfect cube. 4. The sum of 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 +19 is: A) 100. B) 110. C) 121. D) 120. Show Answer Correct Answer: A) 100. 5. The cube of $\frac{-1}{3}$ A) $\frac{-1}{27}$. B) $\frac{-1}{9}$. C) $\frac{1}{27}$. D) $\frac{1}{9}$. Show Answer Correct Answer: A) $\frac{-1}{27}$. 6. If the digit in the ones place of a number is 8, the digit in the ones place of its cube will be A) 8. B) 4. C) 2. D) 6. Show Answer Correct Answer: C) 2. 7. Select the answer with all perfect squares. A) 9, 50, 81, 100. B) -144, 9, 50, 75, 81, 100. C) 9, 50, 75, 81, 100. D) 9, 81, 100. Show Answer Correct Answer: D) 9, 81, 100. 8. Is 225 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. 9. What will be the number of zeros in square of 400? A) 2. B) 4. C) 6. D) 3. Show Answer Correct Answer: B) 4. 10. Select the set with all perfect squares. A) 9, 50, 75, 81, 100. B) 9, 81, 100. C) 9, 50, 81, 100. D) -144, 9, 50, 75, 81, 100. Show Answer Correct Answer: B) 9, 81, 100. 11. Find y where x$^{2}$=y$^{3}$and x=27.$^{.}$ A) Y=not there. B) Y=3. C) Y=5. D) Y=9. Show Answer Correct Answer: D) Y=9. 12. Guess the cube roots of 4913. A) 73. B) 13. C) 27. D) 17. Show Answer Correct Answer: D) 17. 13. One's digit in the cube of 102? A) 6. B) 4. C) 8. D) 2. Show Answer Correct Answer: C) 8. 14. $-\left(6^3\right)$ A) 216. B) -216. C) -18. D) 18. Show Answer Correct Answer: B) -216. 15. Which of the following is not a cube number? A) 32. B) 8. C) 27. D) 16. Show Answer Correct Answer: D) 16. 16. Find the cube of 0.08 A) 0.000215. B) 0.000512. C) 0.512. D) 512. Show Answer Correct Answer: B) 0.000512. 17. What is the cube root of 8? A) 5. B) 4. C) 3. D) 2. Show Answer Correct Answer: D) 2. 18. 27 is a perfect cube A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. The prime factorisation of 64 is: A) 8 x 8 x 8. B) 2 x 2 x 2. C) 4 x 4 x 4. D) None of the above. Show Answer Correct Answer: D) None of the above. 20. FIND WHICH ONE OF THE FOLLOWING STATEMENT IS RIGHT. A) CUBE OF AN EVEN NUMBER WILL BE ODD. B) A CUBE NUMBER IS OTHERWISE CALLED AS PERFECT CUBE. C) CUBE OF AN ODD NUMBER WILL BE EVEN. D) 121 IS A PERFECT CUBE. Show Answer Correct Answer: B) A CUBE NUMBER IS OTHERWISE CALLED AS PERFECT CUBE. 21. $\sqrt{1+\frac{15}{49}}=$ A) 21. B) $\frac{5}{2}$. C) 2. D) $\frac{8}{7}$. Show Answer Correct Answer: D) $\frac{8}{7}$. 22. Which of the following numbers is a perfect cube? A) 1525. B) 3993. C) 1458. D) 1728. Show Answer Correct Answer: D) 1728. 23. Find the number whose square is the sum of the cube of the first 5 natural numbers. A) 12. B) 13. C) 10. D) 15. Show Answer Correct Answer: D) 15. 24. If a is a positive number, then $\sqrt[3]{-a}$ A) $a^{-3}$. B) $-a^3$. C) $-\sqrt[3]{a}$. D) None of the above. Show Answer Correct Answer: C) $-\sqrt[3]{a}$. 25. $\sqrt[3]{1000}$ A) 10. B) 100. C) 125. D) None of the above. Show Answer Correct Answer: A) 10. 26. Find the cube root of 19683 A) 23. B) 27. C) 37. D) 17. Show Answer Correct Answer: B) 27. 27. A cube with side length s has a volume of 64 cubic units. What is the length of the side of the cube? A) 4 units. B) 32 units. C) 8 units. D) 16 units. Show Answer Correct Answer: A) 4 units. 28. Which of the following are perfect cubes? A) 525. B) 232. C) 4913. D) 90. Show Answer Correct Answer: C) 4913. 29. What number, n, cubed is equal to 512?n$^{3}$ = 512 A) 134, 217, 728. B) 7. C) 171. D) 8. Show Answer Correct Answer: D) 8. 30. What is 5 cubed?5$^{3}$ A) 25. B) 125. C) 15. D) 625. Show Answer Correct Answer: B) 125. 31. What are the square roots of 36? A) 6 and-6. B) 6. C) -6. D) None of the above. Show Answer Correct Answer: A) 6 and-6. 32. What is the value of 11 x 11 x 11? A) 1221. B) 1321. C) 1231. D) 1331. Show Answer Correct Answer: D) 1331. 33. Find the smallest number which when multiplied with 3600 will make the product a perfect cube. A) 6. B) 60. C) 66. D) 26. Show Answer Correct Answer: B) 60. 34. Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. How many such cuboids will he need to form a cube? A) 20. B) 4. C) 50. D) 5. Show Answer Correct Answer: A) 20. 35. There is no perfect cube which ends in 9. Mark True / False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 36. $\left(-2\right)^3$ A) 6. B) -8. C) -6. D) 8. Show Answer Correct Answer: B) -8. 37. Find the cube roots of the following integer:-5832 A) 18. B) 12. C) -(-28). D) -18. Show Answer Correct Answer: D) -18. 38. Cube root of 0.001728 is: A) 1.2. B) 0.012. C) 0.0012. D) 0.12. Show Answer Correct Answer: D) 0.12. 39. The cube of 100 will have ..... number of zeroes A) 4. B) 2. C) 6. D) 8. Show Answer Correct Answer: C) 6. 40. What is 36 cubed?36$^{3}$ A) 1, 296. B) 108. C) 46, 656. D) 12. Show Answer Correct Answer: C) 46, 656. 41. Cubes of negative numbers are ..... A) Cannot be determined. B) Can be either positive or negative. C) Positive only. D) Negative only. Show Answer Correct Answer: D) Negative only. 42. Cube root of 216000: A) 6. B) 60. C) 61. D) 55. Show Answer Correct Answer: B) 60. 43. Find the cube root $\sqrt[3]{125}$ A) 15. B) -5. C) 5. D) 25. Show Answer Correct Answer: C) 5. 44. TO CONVERT 392 AS A PERFECT CUBE NUMBER BY WHICH OF THE FOLLOWING NUMBER SHOULD BE MULTIPLIED WITH 392? A) 6. B) 5. C) 2. D) 7. Show Answer Correct Answer: D) 7. 45. What is the cube root of 1000? A) 20. B) 10. C) 100. D) 500. Show Answer Correct Answer: B) 10. 46. The Pythagorean triples whose smallest number is 8: A) 8, 16 17. B) 8, 15, 17. C) 8, 15, 16. D) 8, 17, 18. Show Answer Correct Answer: B) 8, 15, 17. ← PreviousRelated QuizzesMathematics QuizzesClass 8 QuizzesClass 8 Maths Chapter 7 Cubes And Cube Roots Quiz 1Class 8 Maths Chapter 7 Cubes And Cube Roots Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books