This quiz works best with JavaScript enabled. Home > Unit V Mathematical Reasoning And Aptitude > Number System – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Number System Quiz 31 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An Additive Inverse of a number is ..... A) Its opposite value. B) Adding zero. C) Adding a place value. D) The opposite of multiplication. Show Answer Correct Answer: A) Its opposite value. 2. Which of the following is NOT a real number? A) $-3$. B) $0$. C) $\sqrt{-1}$. D) $2.5$. Show Answer Correct Answer: C) $\sqrt{-1}$. 3. A number system that has eight different symbols to represent any quantity is known as A) Binary. B) Octal. C) Decimal. D) Hexadecimal. Show Answer Correct Answer: B) Octal. 4. Does the number 2 have a square root? A) No, because 2 is not a perfect square. B) Yes, it is about 1.414. C) No, because 2 is an even number. D) Yes, it is 4. Show Answer Correct Answer: B) Yes, it is about 1.414. 5. Jamal correctly rounded 637,249 to 640,000. To which place value did Jamal round to? A) Tens place. B) Thousands place. C) Ten thousands place. D) Hundred thousands place. Show Answer Correct Answer: C) Ten thousands place. 6. What is the correct law for multiplication? a$^{m}$ x a$^{n }$= A) A$^{m+n}$. B) A$^{m}$ + a$^{n}$. C) A$^{mxn}$. D) A$^{m}$$^{n}$. Show Answer Correct Answer: A) A$^{m+n}$. 7. The factors of 35 include ..... A) 1,3,5,35. B) 5,15,20,35. C) 1,5,7,35. D) 1,2,4,7,35. Show Answer Correct Answer: C) 1,5,7,35. 8. Distance from-7 to-4 A) 11. B) -11. C) 3. D) -3. Show Answer Correct Answer: C) 3. 9. If x and y are odd positive integers, which of the following is not an odd number? A) Xy. B) $x^{2y}$. C) $\left(x+y\right)^y$. D) $\left(xy\right)^y$. Show Answer Correct Answer: C) $\left(x+y\right)^y$. 10. $^{}$Square root of 16 is ..... A) 8. B) 4. C) 2. D) 3. Show Answer Correct Answer: B) 4. ← PreviousNext →Related QuizzesNumber System Quiz 1Number System Quiz 2Number System Quiz 3Number System Quiz 4Number System Quiz 5Number System Quiz 6Number System Quiz 7Number System Quiz 8Number System Quiz 9Number System Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books