This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Mathematics > Number Systems > Class 9 Maths Chapter 1 Number Systems – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 1 Number Systems Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In BCD each number is represented by ..... bits A) 5. B) 3. C) 4. D) 2. Show Answer Correct Answer: C) 4. 2. Convert 8B3F16 to binary. A) 1011001111100011. B) 35647. C) 011010. D) 1000101100111111. Show Answer Correct Answer: D) 1000101100111111. 3. Asher and David are discussing the set of rational numbers between 1 and 2. Can you help them identify the correct options? A) 3/4. B) 2.5. C) Any rational number in the form of a/b where 1 < a/b < 2, such as 1.1, 1.25, 1.5, 1.75, 3/2, 7/5. D) 0.5. Show Answer Correct Answer: C) Any rational number in the form of a/b where 1 < a/b < 2, such as 1.1, 1.25, 1.5, 1.75, 3/2, 7/5. 4. Perform binary subtraction:101111-010101 =? A) 011001. B) 010101. C) 011010. D) 100100. Show Answer Correct Answer: C) 011010. 5. If x, y, z are positive real numbers, then find the value of $\sqrt{x^{-1}y\\}\times\sqrt{y^{-1}z\\}\times\sqrt{z^{-1}x\\}$ A) $\frac{1}{xyz}$. B) $x^2y^2z^2$. C) 1. D) $xyz$. Show Answer Correct Answer: C) 1. 6. Convert the following binary number to decimal.01011 A) 35. B) 10. C) 11. D) 15. Show Answer Correct Answer: C) 11. 7. The Number of digits in a binary number system are A) 8. B) 16. C) 2. D) 10. Show Answer Correct Answer: C) 2. 8. On multiplication of (10.10) and (01.01), we get A) 101.0010. B) 011.0010. C) 110.0011. D) 0010.101. Show Answer Correct Answer: B) 011.0010. 9. Which one is a self-complementing code? A) Gray code. B) Excess-3 code. C) Binary code. D) BCD. Show Answer Correct Answer: B) Excess-3 code. 10. Convert binary 111111110010 to hexadecimal. A) FF2. B) 2FE. C) FD2. D) EE2. Show Answer Correct Answer: A) FF2. 11. What is the place value of 8 in the number 87, 93, 349? A) Lakhs. B) Thousands. C) Ten lakhs. D) None of the above. Show Answer Correct Answer: C) Ten lakhs. 12. The decimal expansion of 7/20 is: A) Terminating. B) Non-terminating recurring. C) Non-terminating non-recurring. D) None of these. Show Answer Correct Answer: A) Terminating. 13. The difference of 111-001 equals ..... A) 100. B) 110. C) 001. D) 111. Show Answer Correct Answer: B) 110. 14. The number system we use from our childhood is decimal number system. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. What is the absolute value of-14 degrees Celsius? A) 14. B) -14. C) All the above. D) None of the above. Show Answer Correct Answer: A) 14. 16. Which set of numbers is denoted by the letter 'Z'? A) Natural numbers. B) Integers. C) Rational numbers. D) Whole numbers. Show Answer Correct Answer: B) Integers. 17. Which of the following is not a positional number system? A) Roman. B) Decimal. C) Binary. D) Octal. Show Answer Correct Answer: A) Roman. 18. Identify the type of decimal expansion for 7/8. A) Non-terminating non-repeating. B) Non-terminating repeating. C) Irrational. D) Terminating. Show Answer Correct Answer: D) Terminating. 19. $15\sqrt{15}\div3\sqrt{3}=$ A) $5\sqrt{3}$. B) $3\sqrt{3}$. C) $3\sqrt{5}$. D) $5\sqrt{5}$. Show Answer Correct Answer: D) $5\sqrt{5}$. 20. Aryon has $ 20. He buys 2 Cokes that each cost $ 1.50. He also buys a sandwich for $ 5.50 and a bag of chips that costs $ 2.25. After Aryon pays for his lunch, how much money does he have left? A) $ 0. B) $ 10. C) $ 9.25. D) $ 10.75. Show Answer Correct Answer: C) $ 9.25. 21. $\frac{56}{1000}$ A) 0.056. B) 0.0056. C) 0.56. D) 5.6. Show Answer Correct Answer: A) 0.056. 22. There are 20 cars in a parking lot.Geico provides insurance to 3/5 of the cars.AllState provides insurance to one-tenth of the cars.State Farm provides insurance to the remaining cars.How many cars in this parking lot does State Farm provide insurance to? A) 20. B) 14. C) 6. D) 12. Show Answer Correct Answer: C) 6. 23. The binary equivalent of 12 is A) 1010. B) 0101. C) 1110. D) 1100. Show Answer Correct Answer: D) 1100. 24. 8 ones, 5 tens, 3 hundreds, 6 thousands, 7 ten thousands, and 2 lakhs is A) 2, 76, 358. B) 8, 53, 672. C) All the above. D) None of the above. Show Answer Correct Answer: A) 2, 76, 358. 25. If ASHER is 20 years old now, how old will he be in 5 years? A) 22. B) 30. C) 25. D) 15. Show Answer Correct Answer: C) 25. 26. Find 3 rational numbers between 3 and 4. A) 3.1, 3.2, 3.3. B) 3.2, 3.5, 3.8. C) Both A and B. D) None. Show Answer Correct Answer: C) Both A and B. 27. Order from least to greatest:-5, -17, 3, 0 A) -17, -5, 0, 3. B) 3, 0, -17, -5. C) 3, 0, -5, -17. D) -5, -17, 0, 3. Show Answer Correct Answer: A) -17, -5, 0, 3. 28. We write 7, 47, 398 in which system? A) International number system. B) Indian number system. C) All the above. D) None of the above. Show Answer Correct Answer: B) Indian number system. 29. What is the successor of 36, 79, 999? A) 40, 00, 000. B) 36, 00, 000. C) 36, 80, 000. D) None of the above. Show Answer Correct Answer: C) 36, 80, 000. 30. The decimal equivalent of binary number 100000 A) 8. B) 16. C) 32. D) 64. Show Answer Correct Answer: C) 32. 31. GOKUL and PRATHAP are trying to find the least common multiple (LCM) of 8 and 12 for their math project. A) 24. B) 20. C) 30. D) 16. Show Answer Correct Answer: A) 24. 32. How do you write this number using digits?Four lakhs, one thousand, two hundred twelve A) 4, 01, 212. B) 4, 02, 112. C) 4, 02, 121. D) 4, 01, 221. Show Answer Correct Answer: A) 4, 01, 212. 33. Which of these statements is NOT true? A) Binary uses a base 2 system. B) The highest value a single digit in Binary can be is 1. C) We can uses all the same operations in binary that we can in other systems. D) Binary is only useful for computing. Show Answer Correct Answer: D) Binary is only useful for computing. 34. The binary equivalent of 14 is A) 1000. B) 1110. C) 1001. D) 1101. Show Answer Correct Answer: B) 1110. 35. Henry and Margo both began traveling around a circular track. Henry is riding his bike, and Margo is walking. It takes Henry 7 minutes to make it all the way around, and Margo takes 12 minutes. How much time will pass until they meet at the starting line? A) 48 minutes. B) 84 minutes. C) 78 minutes. D) 854 minutes. Show Answer Correct Answer: B) 84 minutes. 36. A submarine was 1800 ft below sea level. It dove another 1500 feet deeper. Which integer represents its location? A) -3000 ft. B) -3300 ft. C) -300 ft. D) 3300 ft. Show Answer Correct Answer: B) -3300 ft. 37. Base value of Hexadecimal number system is A) 16. B) 8. C) 4. D) 2. Show Answer Correct Answer: A) 16. 38. Name the number system that best describes the situation.Measurements in a recipe. A) Integers. B) Whole Numbers. C) Rational Numbers. D) Irrational Numbers. E) Real Numbers. Show Answer Correct Answer: C) Rational Numbers. 39. What is 16-5.35 equal to? A) $ 9.31. B) $ 10.35. C) $ 11.35. D) $ 10.65. Show Answer Correct Answer: D) $ 10.65. 40. 5-(-1 1/2) x-1 1/9 A) -5 and 2/3. B) 4/15. C) -3 and 1/15. D) 1 and 14/15. Show Answer Correct Answer: D) 1 and 14/15. 41. Tom went to the mall.He bought 2 shirts for $ 23.12 and a hat for $ 6.25.The shirts were the same price.He returned one of the shirts and bought lunch for $ 6.17.He had $ 11.78 remaining when he left the mall.How much money did Tom take with him to the mall? A) $ 35.55. B) $ 47.32. C) $ 35.76. D) $ 23.98. Show Answer Correct Answer: C) $ 35.76. 42. Number Systems #9-What is the correct order of properties? A) Distributive CommutativeAssociative. B) Commutative DistributiveAssociative. C) Associative CommutativeDistributive. D) None of the above. Show Answer Correct Answer: A) Distributive CommutativeAssociative. 43. 000+40, 000+2000+300+70+8This adds up to ..... A) 8, 42, 378. B) 8, 24, 378. C) All the above. D) None of the above. Show Answer Correct Answer: A) 8, 42, 378. 44. Which decimal is equivalent to $-3\frac{19}{30}$ A) $-3.\overline{63}$. B) -3.6363 . C) $-3.6\overline{3}$. D) -3.63. Show Answer Correct Answer: C) $-3.6\overline{3}$. 45. At the gym, Hillary swims every 6 days, runs every 4 days and cycles every 16 days. If she did all three activities today, in how many days will she do all three activities on the same day? (hint LCM) A) 48. B) 24. C) 32. D) 16. Show Answer Correct Answer: A) 48. 46. A farm was selling tickets for hay rides. Each ticket cost $ 12. On Saturday, there was $ 2, 352 in ticket sales. How many people went on the hay ride on Saturday? A) 212. B) 199. C) 196. D) None of the above. Show Answer Correct Answer: C) 196. 47. 1's complement of 1011101 is ..... A) 0100010. B) 1001101. C) 1100101. D) 0101110. Show Answer Correct Answer: A) 0100010. 48. What is the multiplicative inverse of $5$ $Z_9$ A) 4. B) 5. C) 2. D) 3. Show Answer Correct Answer: C) 2. 49. Multiply:(2 + 3)(2-3) A) 4-3. B) 4 + 3. C) 3. D) 1. Show Answer Correct Answer: D) 1. 50. The decimal expansion of 1/3 is: A) Terminating. B) Non-terminating recurring. C) Non-terminating non-recurring. D) None of these. Show Answer Correct Answer: B) Non-terminating recurring. 51. Number Systems #5-The correct order of answers for #5 is ..... A) .83, .75, .375. B) .75, .375, .83. C) .375, .8333, 75. D) .75, .375, .8333. Show Answer Correct Answer: D) .75, .375, .8333. 52. What are the three rules we learn to divide fractions? A) Keep, Flip, Change. B) Change, Keep, Flip. C) Keep, Keep, Change. D) Keep, Change, Flip. Show Answer Correct Answer: D) Keep, Change, Flip. 53. The base of binary number system is ..... A) 10. B) 8. C) 2. D) None of the above. Show Answer Correct Answer: C) 2. 54. $Simplify\\frac{4}{2+\sqrt{3}+\sqrt{7}}$ A) $\frac{2\sqrt{3}+3-21}{3}$. B) $\frac{2+\sqrt{3}-21}{3}$. C) All the above. D) None of the above. Show Answer Correct Answer: A) $\frac{2\sqrt{3}+3-21}{3}$. 55. Madison uses 54 beads to make one necklace. If Madison has 2, 185 beads, how many necklaces can she make and how many beads would be left over? A) 40 necklaces with 25 beads left over. B) 40 necklaces with 15 beads left over. C) 42 necklaces with 27 beads left over. D) 42 necklaces with 17 beads left over. Show Answer Correct Answer: A) 40 necklaces with 25 beads left over. 56. To which category does 1/2 belong? A) Whole # Only. B) Rational #. C) Integer & Rational. D) Integer Only. Show Answer Correct Answer: B) Rational #. 57. ..... number system has 16 digits. A) Decimal. B) Hexa decimal. C) Octal. D) None of the above. Show Answer Correct Answer: B) Hexa decimal. 58. Convert 0.16 (repeating) to rational number. A) 16/99. B) 8/45. C) 1/6. D) 16/90. Show Answer Correct Answer: B) 8/45. 59. What is the decimal equivalent of the hexadecimal number A? A) 10. B) 13. C) 12. D) 11. Show Answer Correct Answer: A) 10. 60. Say 'TRUE' or 'FALSE'Every irrational number is a real number A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. ← PreviousNext →Related QuizzesMathematics QuizzesClass 9 QuizzesClass 9 Maths Chapter 1 Number Systems Quiz 1Class 9 Maths Chapter 1 Number Systems Quiz 2Class 9 Maths Chapter 1 Number Systems Quiz 3Class 9 Maths Chapter 1 Number Systems Quiz 4Class 9 Maths Chapter 1 Number Systems Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books