This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Maths Chapter 1 Number Systems – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 1 Number Systems Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Place the numbers in order least to greatest.-2.5, -3.5, -1.5, -2.4, 0, -3.75 A) -3.75, -3.5, -2.5, -2.4, -1.5, 0. B) 0, -1.5, -2.4, -2.5, -3.5, -3.75. C) -1.5, -2.4, -2.5, -3.5, -3.75, 0. D) 0, -3.75, -3.5, -2.5, -2.4, -1.5. Show Answer Correct Answer: A) -3.75, -3.5, -2.5, -2.4, -1.5, 0. 2. Name the number system which uses alphabets as well as numerals A) Binary. B) Hexadecimal. C) Octal. D) Decimal. Show Answer Correct Answer: B) Hexadecimal. 3. Find the absolute value of 315 ft below sea level A) 315. B) -315. C) All the above. D) None of the above. Show Answer Correct Answer: A) 315. 4. Two clocks are turned on at the same time. One clock chimes every 15 minutes. The other clock chimes every 25 minutes. In how many minutes will they chime together? A) 55 minutes. B) 25 minutes. C) 60 minutes. D) 75 minutes. Show Answer Correct Answer: D) 75 minutes. 5. Which of the following numbers is wrong? A) 61$_{2}$. B) 24$_{10}$. C) 53$_{8}$. D) 90$_{16}$. Show Answer Correct Answer: A) 61$_{2}$. 6. Identify the number system in the given number(Note-view the commas are inserted)5, 61, 341 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. 7. Which number system do you use in your regular Math class? A) Binary. B) Decimal. C) Octal. D) Hexadecimal. Show Answer Correct Answer: B) Decimal. 8. True or False:$Z^-\cup W\subset Z$ A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. GCF of 20 and 35 A) 4. B) 5. C) 7. D) 20. Show Answer Correct Answer: B) 5. 10. Every rational number is A) A natural number. B) An integer. C) A whole number. D) A real number. Show Answer Correct Answer: D) A real number. 11. Which of the following statements is true about points graphed on anumber line oriented from left to right? A) -5 is located to the left of-8. B) -6 is located to the left of-5. C) -11 is located to the right of-8. D) -8 is located to the right of-2. Show Answer Correct Answer: B) -6 is located to the left of-5. 12. Express 0.777 ..... as a rational number. A) 7/9. B) 77/100. C) 7/10. D) 7/99. Show Answer Correct Answer: A) 7/9. 13. When a rational number is written as a decimal, the decimal is either ..... A) Positive or negative. B) Pi or not pi. C) Terminating or repeating. D) Really long or really short. Show Answer Correct Answer: C) Terminating or repeating. 14. The octal number (651.124)8 is equivalent to ..... A) $(1A9.2A)_{16}$. B) $\left(1B0.10\right)_{16}$. C) $\left(1A8.A3\right)_{16}$. D) $\left(1B0.B0\right)_{16}$. Show Answer Correct Answer: A) $(1A9.2A)_{16}$. 15. Evaluate 8.43-x for x=2.3 A) 8.2. B) 1.6. C) 6.13. D) 16. Show Answer Correct Answer: C) 6.13. 16. Rationalize and simplify:1/2 + 1 A) 2 + 1/2 + 1. B) 2-1/2-1. C) 2-2. D) 2. Show Answer Correct Answer: B) 2-1/2-1. 17. Ben and Ben went to meet up with Matt and Luke at BW3s. They spent $ 46.50 on 75 wings. How much was each wing before tax? A) 62 cents. B) 60 cents. C) 63 cents. D) 62 cents. Show Answer Correct Answer: A) 62 cents. 18. What is the LCM (Least Common Multiple) of 4 and 10? A) 4. B) 40. C) 15. D) 20. Show Answer Correct Answer: D) 20. 19. During a math class, PRATHAP is trying to remember the divisibility rule for 5. Can you help him? A) A number is divisible by 5 if its last digit is 0 or 5. B) A number is divisible by 5 if its last digit is 2 or 3. C) A number is divisible by 5 if it is even. D) A number is divisible by 5 if the sum of its digits is 5. Show Answer Correct Answer: A) A number is divisible by 5 if its last digit is 0 or 5. 20. Which of the following statements accurately describes the characteristics of real numbers? A) Real numbers can only be positive. B) Real numbers encompass both rational and irrational numbers, and they can be represented on a number line. C) Real numbers are exclusively fractions. D) Real numbers do not include decimals. Show Answer Correct Answer: B) Real numbers encompass both rational and irrational numbers, and they can be represented on a number line. 21. What is the octal equivalent of the binary number 101001$_{2}$? A) 51$_{8}$. B) 54$_{8}$. C) 53$_{8}$. D) 52$_{8}$. Show Answer Correct Answer: A) 51$_{8}$. 22. How do you write this number using words?7, 32, 405 A) Seven lakhs, thirty two, thousand, four hundred fifty. B) Seven lakhs, thirty two thousand, four hundred and fifty. C) Seven lakhs, thirty two thousand, four hundred five. D) Seven lakhs, thirty two thousand, forty. Show Answer Correct Answer: C) Seven lakhs, thirty two thousand, four hundred five. 23. What axiom justifies the following statement? $a\times\left(b+c\right)=\left(a\times b\right)+\left(a\times c\right)$ A) Associativity. B) Commutativity. C) Distributivity. D) Closure. Show Answer Correct Answer: C) Distributivity. 24. What is the distance between (4, -6) and (4, 2) A) 0. B) 8. C) 4. D) 6. Show Answer Correct Answer: B) 8. 25. A team of runners is needed to run a $^{1}$/$_{4}$ mile relay race . If each runner must run $^{1}$/$_{16}$ mile. How many runners do they need to run the race? A) 4. B) 5. C) 1/64. D) 2. Show Answer Correct Answer: A) 4. ← 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 7Class 9 Maths Chapter 1 Number Systems Quiz 8Class 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