This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Maths Chapter 1 Number Systems – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 1 Number Systems Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Convert the following Gray code to Binary1010 A) 0100. B) 1010. C) 1100. D) 1011. Show Answer Correct Answer: C) 1100. 2. Rational numbers are ..... A) Any integer, number, fraction, or decimal that does not have a denominator of zero. B) Positive whole numbers, their opposites, and zero. C) All positive numbers, no fractions or decimals. D) The counting numbers. Show Answer Correct Answer: A) Any integer, number, fraction, or decimal that does not have a denominator of zero. 3. What is the base of the decimal number system? A) 2. B) 8. C) 10. D) 16. Show Answer Correct Answer: C) 10. 4. The Base of the hexadecimal number systems is A) 2. B) 6. C) 8. D) 16. Show Answer Correct Answer: D) 16. 5. The binary equivalent of 13 is A) 1101. B) 1000. C) 1110. D) 1001. Show Answer Correct Answer: A) 1101. 6. Devon had his two friends over for pizza. Devon ate 1/4 of the pizza. One of his friends ate 3/8 of the pizza and the other friend ate 1/8 of the pizza. How much of the pizza is left? A) 1/4. B) 1/8. C) 1/3. D) 1/5. Show Answer Correct Answer: A) 1/4. 7. Subtract:5/6-1/3. A) 3/6. B) 1/2. C) 1/3. D) 2/3. Show Answer Correct Answer: B) 1/2. 8. Compare:-12 ..... 2 A) -12 <-2. B) -12 >-2. C) -12 =-2. D) None of the above. Show Answer Correct Answer: A) -12 <-2. 9. The radix of Binary number system is A) 1. B) 2. C) 3. D) 9. Show Answer Correct Answer: B) 2. 10. At Kentucky Fried Chicken, the kitchen staff baked 96 chicken legs, 144 thighs, and 224 wings. The staff had to prepare platters for a catered lunch at an office. Each platter will have the same number of legs, thighs, and wings. How many platters can the staff make if they want the greatest number of chicken pieces on each platter? A) Greatest Common Factor. B) Least Common Multiple. C) All the above. D) None of the above. Show Answer Correct Answer: A) Greatest Common Factor. 11. Octal number system uses digits from 0-8 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 12. The height of a volcano is approximately 33, 000 ftof which 17, 976 feet isabove sea level. The rest of the volcano is below sea level. Which integerrepresents the elevation of the volcano below sea level? A) -17, 976 ft. B) -15, 024 ft. C) +15, 024 ft. D) +17, 976 ft. Show Answer Correct Answer: B) -15, 024 ft. 13. The product of any two irrational numbers is A) Always an irrational number. B) Always a rational number. C) Always an integer. D) Sometimes rational, sometimes irrational. Show Answer Correct Answer: D) Sometimes rational, sometimes irrational. 14. GOKUL and ASHER are playing a game where they need to find numbers that are divisible by both 2 and 3. If they find such a number, what other number must it also be divisible by? A) 4. B) 12. C) 6. D) 9. Show Answer Correct Answer: C) 6. 15. Benil and David are trying to find the HCF of 30 and 45 for their math project. A) 15. B) 10. C) 5. D) 20. Show Answer Correct Answer: A) 15. 16. What is the product of the HCF and LCM of two numbers? A) The product of the HCF and LCM is the sum of the two numbers. B) The product of the HCF and LCM is equal to the difference of the two numbers. C) The product of the HCF and LCM of two numbers is equal to the product of the two numbers. D) The product of the HCF and LCM is always greater than the larger number. Show Answer Correct Answer: C) The product of the HCF and LCM of two numbers is equal to the product of the two numbers. 17. $\sqrt[]{13}$ A) Irrational. B) Rational. C) Integer. D) Whole. Show Answer Correct Answer: A) Irrational. 18. Benil and John are trying to find the LCM of 9 and 15 for their math project. A) 45. B) 30. C) 60. D) 75. Show Answer Correct Answer: A) 45. 19. -35-(-10) A) -25. B) 25. C) 45. D) -45. Show Answer Correct Answer: A) -25. 20. An entire chocolate cake has 5, 320 calories. If the cake is equally divided into 14 pieces, how many calories are in each piece? A) 380. B) 38. C) 280. D) 2.8. Show Answer Correct Answer: A) 380. 21. The sum of the two BCD numbers, 0011 + 0011, is ..... A) 0110. B) 0111. C) 0011. D) 1100. Show Answer Correct Answer: A) 0110. 22. Say 'TRUE' or 'FALSE'There are finite rational numbers between any two given rational numbers. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 23. Convert the decimal number 10 to binary. A) 1010. B) 1001. C) 1100. D) 1011. Show Answer Correct Answer: A) 1010. 24. A relay race lasts 5.8 miles. The relay team has 4 runners. If each runner goes the same distance, how far does each team member run? A) 1.65 miles. B) 1.55 miles. C) 1.45 miles. D) 1.35 miles. Show Answer Correct Answer: C) 1.45 miles. 25. Octal equivalent of the binary 110101 A) 64. B) 65. C) 45. D) 54. Show Answer Correct Answer: B) 65. ← PreviousNext →Related 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 5Class 9 Maths Chapter 1 Number Systems Quiz 6Class 9 Maths Chapter 1 Number Systems Quiz 7Class 9 Maths Chapter 1 Number Systems Quiz 9Class 9 Maths Chapter 1 Number Systems Quiz 10Class 9 Maths Chapter 1 Number Systems Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books