This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Mathematics > Simple Equations > Class 7 Mathematics Chapter 4 Simple Equations – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Mathematics Chapter 4 Simple Equations Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. You spend $ 30.40 on 4 CD's. Each CD cost the same amount and is on sale for 80% of the original price. Which equation would help find the original price of each CD? (let $x\rightarrow$ A) $.8\left(4x\right)=30.40$. B) $80\left(\frac{x}{4}\right)=30.40$. C) $.8\left(30.40\right)=4x$. D) $\frac{4x}{80}=30.40$. E) $.8\left(\frac{1}{20}x\right)=30.40$. Show Answer Correct Answer: A) $.8\left(4x\right)=30.40$. 2. 9 increased by x A) 9-x. B) Yam. C) 9 + x. D) None of the above. Show Answer Correct Answer: C) 9 + x. 3. Pure substances that are composed of two or more atoms that are chemically combined are called: A) Elements. B) Compounds. C) Subscripts. D) None of the above. Show Answer Correct Answer: B) Compounds. 4. Solve the problem:Al + S $\rightarrow$ Al2S3 A) Al + 2S $\rightarrow$ 2Al2S3. B) Al + Ezz $\rightarrow$ Al Qazi. C) All the above. D) None of the above. Show Answer Correct Answer: B) Al + Ezz $\rightarrow$ Al Qazi. 5. What is the solution to the equation 5x-10 = 0? A) X = 4. B) X = 3. C) X = 2. D) X = 1. Show Answer Correct Answer: C) X = 2. 6. Medicine + 10-Heb = 37 A) P =-5. B) P = 7. C) P = 9. D) P = 8. Show Answer Correct Answer: C) P = 9. 7. Solve:3x + 15 = 3(x + 5) A) No Solution. B) X = 15. C) Infinitely Many Solutions. D) None of the above. Show Answer Correct Answer: C) Infinitely Many Solutions. 8. The sum of three times x and 10 is 13 A) ZKS+10 = 13. B) 3x-10=13. C) ZKS+13 = 10. D) None of these. Show Answer Correct Answer: A) ZKS+10 = 13. 9. In the expression 3m + 8, the number 3 is called the ..... A) Answer. B) Variable. C) Constant. D) Coefficient. Show Answer Correct Answer: D) Coefficient. 10. Which of the following are basic rules used for solving algebraic equations? A) Always start on the left side, regardless of where the variable is. B) Negative signs can be ignored. C) Whatever you do to one side of the equal sign, you must copy and do on the other side of the equal sign. D) All options are correct. Show Answer Correct Answer: C) Whatever you do to one side of the equal sign, you must copy and do on the other side of the equal sign. 11. Product of fractions 2 /7 and 5 /9 is A) $\frac{2\times5}{7\times9}$. B) $\frac{2+5}{2+9}$. C) $\frac{2\times5}{7+9}$. D) $\frac{2\times9}{5\times7}$. Show Answer Correct Answer: A) $\frac{2\times5}{7\times9}$. 12. The solution of the equation 4p-3 = 9 is A) 3. B) 1. C) 4. D) 2. Show Answer Correct Answer: A) 3. 13. Half of your baseball card collection got wet and was ruined. Bought 11 cards to replace some that were lost. How many did you begin with if you now have 31? A) 40. B) 51. C) 73. D) 62. Show Answer Correct Answer: A) 40. 14. Solve for x.2x + 1 = 5 A) X = 1. B) X = 13. C) X = 3. D) X = 2. Show Answer Correct Answer: D) X = 2. 15. Solve the following systems of equations using substitution:y = 8y =-4x + 4 A) (8, -28). B) (8, -1). C) (-1, 8). D) (-28, 8). Show Answer Correct Answer: C) (-1, 8). 16. Simplify the expression:$\frac{2x}{5}-\frac{3x}{4}$ A) $-\frac {7x} {20} $. B) $\frac{23x}{20}$. C) $ \frac {7x} {20} $. D) $-\frac{7}{20}$. Show Answer Correct Answer: A) $-\frac {7x} {20} $. 17. What are the Symbols for the following elements? O, Al, Fe, He, KAnswers will be in the same order as the symbols above. Ex:H, Ca, Cu (Hydrogen, Calcium, Copper) A) Oxygen, Gold, Flourine, Helium, Potassium. B) Oxygen, Aluminum, Iron, Helium, Potassium. C) Hydrogen, Aluminum, Copper, Helium, Potassium. D) None of these are correct. Show Answer Correct Answer: B) Oxygen, Aluminum, Iron, Helium, Potassium. 18. What whole number should replace the variable to make the equation 8y = 72 true? A) 64. B) -9. C) 80. D) 9. Show Answer Correct Answer: D) 9. 19. A letter used to represent an unknown value A) Expression. B) Variable. C) Coefficient. D) None of the above. Show Answer Correct Answer: B) Variable. 20. Solve the following systems of equations using substitution:2y + x =-15x = 3y A) (-3, -9). B) (9, -3). C) (-9, -3). D) (-3, 9). Show Answer Correct Answer: C) (-9, -3). 21. Write a simple equation to solve each problem.Ms. Wong has 60 apples. She has 20 % more apples than Justin. How many apples does Justin have? A) 75. B) 50. C) 48. D) 49. Show Answer Correct Answer: B) 50. 22. Solve for w:-6w + 1 =-11 A) W = 2. B) W =-2. C) W = 1.2. D) W = 12. Show Answer Correct Answer: A) W = 2. 23. Simplify the expression11(9 + d) A) 99 + d. B) 20 + 9d. C) 99+11d. D) 20 + d. Show Answer Correct Answer: C) 99+11d. 24. $\frac{k}{3}=15$ A) 3. B) 12. C) 45. D) 18. Show Answer Correct Answer: C) 45. 25. Solve the following systems of equations using substitution:y = 3-x3y + x = 5 A) (3, 0). B) (2, 1). C) No solution. D) (1, 2). Show Answer Correct Answer: B) (2, 1). 26. Please solve this equation1.2x = 9.6 A) X = 8. B) X = 10.8. C) X = 8.4. D) None of these match my answer. Show Answer Correct Answer: A) X = 8. 27. Is this an equation? 21=z+11 A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: B) Yes. 28. Solve the equation $6+\sqrt{6-15x}=15$ A) X =-5. B) X =-1. C) X = $\frac{1}{5}$. D) No Solution. Show Answer Correct Answer: A) X =-5. 29. I have 2 pencils. One is black, and ..... is blue. A) Another. B) The other. C) The others. D) Others. Show Answer Correct Answer: B) The other. 30. 3x + 2 = 8 then x = A) 3. B) 2. C) 10/3. D) None. Show Answer Correct Answer: B) 2. 31. Write an equation for three-fourth of t is 15 A) T 3/4 = 15. B) Thu/h = 15. C) Pm / h = 15. D) 3/4 t = 15. Show Answer Correct Answer: C) Pm / h = 15. 32. Solve the following equation:$2m+16=16$ A) 16. B) 0. C) 8. D) 4. Show Answer Correct Answer: B) 0. 33. Solve the following equation for x:6x + 2 = 8x-2 A) X = 10/14. B) X = 2. C) X =-1. D) X = 1. Show Answer Correct Answer: B) X = 2. 34. $\frac{x+2}{6}-\left[\frac{11-x}{3}-\frac{1}{4}\right]=\frac{3x-4}{12}$ A) 14. B) 11. C) 18. D) 16. Show Answer Correct Answer: B) 11. 35. 7 less than a number d A) 7-d. B) D-7. C) All the above. D) None of the above. Show Answer Correct Answer: B) D-7. 36. One fifth of a number minus 4 gives 3. Which of the following is the number? A) 35. B) 4. C) 21. D) 15. Show Answer Correct Answer: A) 35. 37. 3 ( x + 4 ) is the same as: A) X + 12. B) ZKS-12. C) ZKS + 12. D) ZKS + h. Show Answer Correct Answer: C) ZKS + 12. 38. Find the value of x:3 (x-2) = 9 A) X = 8. B) X = 7. C) X = 6. D) X = 5. Show Answer Correct Answer: D) X = 5. 39. What is the name of these sequences?0, 1, 1, 2, 3, 5, 8, 13, 21, 34 ..... A) Hypergeometrical series. B) Geometrical series. C) Fibonacci sequence. D) Exponential. Show Answer Correct Answer: C) Fibonacci sequence. 40. Solve the following equation:|-2n| + 10 =-50 A) {20, -20}. B) No Solution. C) {-5, 5}. D) {30, -30}. Show Answer Correct Answer: B) No Solution. 41. What are the symbols for the following elements:Zinc, Gold, Chlorine, Sodium, Silicon Answers are in the same order as the elements are listed. A) ZC, Uha, CL,. B) Zn, U, CA, SA. C) 1, go, go, Clell, I ohg. D) Z., go, Clell, Igg. Show Answer Correct Answer: B) Zn, U, CA, SA. 42. Tell whether LHS = RHS or not7n + 29 = 85 (n = 8) A) LHS is greater that RHS. B) LHS is smaller that RHS. C) LHS is not equal to RHS. D) LHS is equal to RHS. Show Answer Correct Answer: D) LHS is equal to RHS. 43. $\frac{d}{5}=\frac{7}{15}$ A) $-\frac{35}{13}$. B) $\frac{12}{7}$. C) $\frac{7}{3}$. D) $\frac{9}{7}$. Show Answer Correct Answer: C) $\frac{7}{3}$. 44. Which is the correct set of secondary colors? A) Orange, yellow, red. B) Orange, violet, green. C) Blue, green, violet. D) Red, blue, yellow. Show Answer Correct Answer: B) Orange, violet, green. 45. 3x + 2 = 8. What is the value of x? A) X = 8. B) X = 6. C) X = 5. D) X = 2. E) X = 3. Show Answer Correct Answer: D) X = 2. 46. What whole number should replace the variable to make the equation x-7 = 12 true? A) -84. B) 19. C) 84. D) 5. Show Answer Correct Answer: B) 19. 47. A lever and fulcrum are used to lift a fallen tree, which has a weight of 480 N. If the lever has a mechanical advantage of 5.5, what is the input force that will begin lifting the tree off the ground? A) 40.7 N. B) 2640 N. C) 87.3 N. D) 5.5 N. Show Answer Correct Answer: C) 87.3 N. 48. PCl$_{5}$ + ..... H$_{2}$O $\rightarrow$ ..... HCl + H$_{3}$PO$_{4}$ A) 1, 6. B) 3, 8. C) 2, 2. D) 4, 5. Show Answer Correct Answer: D) 4, 5. 49. 7 x [x] What is this [x] called as? A) Variable. B) Variable. C) Constant. D) None of these. Show Answer Correct Answer: A) Variable. 50. $\frac{b}{2}=-8$ A) -16. B) 16. C) -4. D) 4. Show Answer Correct Answer: A) -16. 51. Find the ErrorWhat error did the student make when solving the equation:1/5x + 6 = 3/5x + 51x + 6 = 3x + 5-2x + 6 = 5-2x =-1x = 1/2 A) The student found an incorrect common denominator. B) The student did not multiply all terms by the common denominator. C) The student did not use opposite operations appropriately. D) The student did not correctly eliminate the variable from one side of the equation. Show Answer Correct Answer: B) The student did not multiply all terms by the common denominator. 52. 3x-4 = 32 + 7x equation solution, with x integers is ..... A) X =-9. B) X =-6. C) X = 6. D) X = 9. Show Answer Correct Answer: A) X =-9. 53. The steps in solving 5b-6 = 24 are: A) Add 6 to both sides and divide both sides by 5. B) Add 6 to both sides and multiply both sides by 5. C) Subtract 6 from both sides then multiply both sides by 5. D) Subtract 6 from both sides then divide both sides by 5. Show Answer Correct Answer: A) Add 6 to both sides and divide both sides by 5. 54. An equation must contain an equal sign A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 55. How do you solve the equation x/2 = 5? A) Multiply both sides by 2 to get x = 10. B) Add 2 to both sides to get x = 7. C) Subtract 5 from both sides to get x =-5. D) Divide both sides by 2 to get x = 2.5. Show Answer Correct Answer: A) Multiply both sides by 2 to get x = 10. 56. If 200 joules of work was done to move an object with a force of 50 newtons, how far was the object moved? A) 45 meters. B) 4 meters. C) 2 meters. D) 150 meters. Show Answer Correct Answer: B) 4 meters. 57. The reciprocal of $\frac{7}{3}$ A) $\frac{3}{7}$. B) $\frac{7}{3}$. C) $-\frac{3}{7}$. D) 0. Show Answer Correct Answer: A) $\frac{3}{7}$. 58. Apply the Distributive Property as the first step.20(x + 1) = 200 A) X = 180. B) X =-9. C) X = 9. D) X =-180. Show Answer Correct Answer: C) X = 9. 59. Simplify the expression:$\frac{4y}{7}-\frac{3y}{7}$ A) $y$. B) $\frac{3y}{5}$. C) $\frac{4y}{5}$. D) $\frac{y}{7}$. Show Answer Correct Answer: D) $\frac{y}{7}$. 60. Which equation has x = 2 as a solution? A) Hh = 32. B) 3 + x = 10. C) 5x = 25. D) 11 + x = 13. Show Answer Correct Answer: D) 11 + x = 13. ← PreviousNext →Related QuizzesMathematics QuizzesClass 7 QuizzesClass 7 Mathematics Chapter 4 Simple Equations Quiz 1Class 7 Mathematics Chapter 4 Simple Equations Quiz 2Class 7 Mathematics Chapter 4 Simple Equations Quiz 3Class 7 Mathematics Chapter 4 Simple Equations Quiz 4Class 7 Mathematics Chapter 4 Simple Equations Quiz 5Class 7 Mathematics Chapter 4 Simple Equations Quiz 6Class 7 Mathematics Chapter 4 Simple Equations Quiz 8Class 7 Mathematics Chapter 4 Simple Equations Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books