Free ACT Math Test Practice Questions with Answers – Sample 1

Sixty math questions, with answers and detailed solutions, similar to the questions in the ACT math test. The answers are at the bottom of the page.

  1. Convert \(4 \times 10^{-5}\) to decimal form:


    A) -40,000
    B) -200
    C) 0.0004
    D) 0.00004
    E) 0.20
  2. Which of the following is equivalent to \((x)(x)(x)(x^3)\), for all \(x\)?


    A) \(4x\)
    B) \(6x\)
    C) \(x^6\)
    D) \(4x^6\)
    E) \(4x^4\)
  3. There are 15 balls in a box: 8 green, 4 blue, and 3 white. One green ball and one blue ball are removed. If a ball is then selected at random from the remaining balls, what is the probability that it is blue?


    A) \(\dfrac{3}{13}\)
    B) \(\dfrac{4}{15}\)
    C) \(\dfrac{3}{15}\)
    D) \(\dfrac{4}{13}\)
    E) \(\dfrac{2}{13}\)
  4. The length of a rectangle is 3 times its width. If the width is 5 inches, what is the area of the rectangle in square inches?


    A) 15
    B) 20
    C) 30
    D) 75
    E) 40
  5. For all \(x>2\), simplify \(\dfrac{2x^2 + 2x - 12}{x-2}\):


    A) \(2(x-2)\)
    B) \(x+3\)
    C) \(2(x+3)(x-2)\)
    D) \(x-2\)
    E) \(2(x+3)\)
  6. If the hypotenuse of a right triangle is 10 inches and one leg is 5 inches, find the length of the other leg.


    A) 5
    B) \(5\sqrt{3}\)
    C) \(5\sqrt{5}\)
    D) 75
    E) \(10 - \sqrt{5}\)
  7. In the standard \((x,y)\) coordinate plane, the graph of \((x+3)^2 + (y+5)^2 = 16\) is a circle. What is the circumference of the circle?


    A) \(4\pi\)
    B) \(5\pi\)
    C) \(3\pi\)
    D) \(8\pi\)
    E) \(25\pi\)
  8. How many solutions are there to the equation \(x^2 - 7 = 0\)?


    A) 1
    B) 2
    C) 4
    D) 7
    E) 14
  9. A circle with center \((4,-5)\) is tangent to the y-axis. What is the radius of this circle?


    A) 4
    B) 5
    C) \(\sqrt{41}\)
    D) 16
    E) 25
  10. Angle \(A\) is acute and \(\sin(A) = \dfrac{11}{14}\). Find \(\cos(A)\).


    A) \(\dfrac{3}{14}\)
    B) \(\dfrac{\sqrt{3}}{14}\)
    C) \(\dfrac{5\sqrt{3}}{14}\)
    D) \(\sqrt{\dfrac{3}{14}}\)
    E) \(\dfrac{5}{14}\)
  11. Find the values of \(a\) and \(b\) satisfying \(-a|b+4|>0\).


    A) \(a>0\) and \(b \ne -4\)
    B) \(a>0\) and \(b \ne 4\)
    C) \(a<0\) and \(b \ge -4\)
    D) \(a<0\) and \(b \ne -4\)
    E) \(a<0\) and \(b \le -4\)
  12. In a shipment of televisions, \( \dfrac{1}{50} \) are defective. What is the ratio of defective to non-defective TVs?


    A) \(\dfrac{1}{200}\)
    B) \(\dfrac{1}{50}\)
    C) \(\dfrac{1}{49}\)
    D) \(\dfrac{49}{1}\)
    E) \(\dfrac{50}{1}\)
  13. Which of the following numbers is divisible by 4?


    A) 214133
    B) 510056
    C) 322569
    D) 952217
    E) 214395
  14. A particle travels \(1 \times 10^6\) meters per second for \(5 \times 10^{-6}\) seconds. How many meters has it traveled?


    A) \(2 \times 10^{11}\)
    B) \(5 \times 10^{12}\)
    C) \(5 \times 10^{-12}\)
    D) 5
    E) \(5 \times 10^{-36}\)
  15. The length of sides AB and AC in the triangle below are equal. What is the measure of \(\angle A\)?

    act problem 15


    A) 70°
    B) 55°
    C) 40°
    D) 110°
    E) 20°
  16. ABC is an equilateral triangle. AH is perpendicular to BC and has length \(2\sqrt{3}\) inches. Find the area of \(\triangle ABC\).

    act problem 16


    A) 12
    B) \(2\sqrt{3}\)
    C) \(4\sqrt{3}\)
    D) \(8\sqrt{3}\)
    E) cannot be determined
  17. If \(8y = 3x - 11\), then \(x = ?\)


    A) \(\dfrac{88}{3}y\)
    B) \(\dfrac{8}{3}y + 11\)
    C) \(\dfrac{8}{3}y - 11\)
    D) \(\dfrac{8y - 11}{3}\)
    E) \(\dfrac{8y + 11}{3}\)
  18. Solve for \(x\) in \(-2(x+8) = -2x + 20\). Which statement describes the solution set?


    A) \(x=-2\) only
    B) \(x=0\) only
    C) \(x=20\) only
    D) no solution
    E) all real numbers
  19. At what point do the lines \(2x+3y=5\) and \(x=-2\) intersect?


    A) (-2,0)
    B) (-2,5)
    C) (0,5/3)
    D) (0,5)
    E) (-2,3)
  20. The area of a trapezoid is \(A = \dfrac{1}{2} h (b_1 + b_2)\). If \(h=15\), \(A=105\), and \(b_1=22\), find the perimeter.


    A) 8
    B) 45
    C) 60
    D) 30
    E) Does not exist
  21. If you drive at 66 mph, how many miles do you travel in 99 minutes?


    A) 1.5
    B) 0.7
    C) 65.34
    D) 108.9
    E) 150
  22. If \(0 < x < 2 < y\), which must be true?


    A) \(x < \dfrac{xy}{2} < y\)
    B) \(0 < xy < 2x\)
    C) \(x < xy < 2\)
    D) \(0 < xy < 2\)
    E) \(xy < y\)
  23. In the right triangle below, what is \(\cos A\)?

    act problem 23


    A) 3/4
    B) 4/3
    C) 5/4
    D) 3/5
    E) 4/5
  24. The graph of \(y = \dfrac{2}{x-3}\) is shown. Which is the best graphical representation of \(y = \dfrac{-2}{|x-3|}\)?

    act problem 24

    act solution 24

  25. What is the slope of the line:

    \(4x = -3y + 8\)


    A) 4
    B) \(-\dfrac{3}{4}\)
    C) \(-\dfrac{4}{3}\)
    D) 2
    E) 8
  26. In the figure below, \(B\) is on \(\overline{AD}\), \(\angle BAC = 26^\circ\) and \(\angle ACB = 131^\circ\). What is the measure of \(\angle CBD\)?

    act problem 26


    A) \(26^\circ\)
    B) \(157^\circ\)
    C) \(23^\circ\)
    D) \(154^\circ\)
    E) \(49^\circ\)
  27. Which of the following is equal to \(\sqrt{45}\)?


    A) 15
    B) \(5\sqrt{3}\)
    C) \(9\sqrt{5}\)
    D) \(3\sqrt{5}\)
    E) 3
  28. What is the smallest value of \(x\) that satisfies the equation:

    \(x(x+4) = -3\)


    A) -1
    B) 0
    C) 1
    D) 3
    E) -3
  29. A group of 7 friends are having lunch together. Each eats at least \(\dfrac{3}{4}\) of a pizza. What is the minimum number of whole pizzas needed?


    A) 7
    B) 5
    C) 6
    D) 28
    E) 21
  30. All axes have the same scale. Which graph shows the graph of \(y = -2x + 2\)?

    act problem 30

  31. The measures of angles \(A, B, C\) of a triangle are in the ratio \(3:4:5\). What is the largest angle?


    A) \(75^\circ\)
    B) \(15^\circ\)
    C) \(12^\circ\)
    D) \(90^\circ\)
    E) \(60^\circ\)
  32. There are \(n\) students. If \(r\%\) are 12 years or younger, which expression gives the number older than 12?


    A) \(nr/100\)
    B) \(n(1-r)\)
    C) \(100(1-r)n\)
    D) \(\dfrac{n(1-r)}{100}\)
    E) \(\dfrac{n(100-r)}{100}\)
  33. If \(x+4y = 5\) and \(5x+6y = 7\), then \(3x+5y = ?\)


    A) 12
    B) 6
    C) 4
    D) 2
    E) 1
  34. Which integer is nearest to \(\dfrac{\sqrt{2100}}{\sqrt{7}}\)?


    A) 3
    B) 30
    C) 43
    D) 150
    E) 17
  35. For all real \(x\), what is the minimum of \(1 + 2\cos(4x)\)?


    A) 0
    B) 1
    C) -1
    D) -2
    E) -4
  36. What is the largest possible product of two odd integers whose sum is 32?


    A) 34
    B) 64
    C) 255
    D) 256
    E) 1024
  37. If \((a+b)^2 = 25\) and \((a-b)^2 = 45\), find \(a^2 + b^2\).


    A) 35
    B) 70
    C) 625
    D) 2025
    E) 4900
  38. If \(a = 3\), evaluate \(\dfrac{2}{\dfrac{1}{7} + \dfrac{1}{a}}\).


    A) 5
    B) \(\dfrac{21}{10}\)
    C) 20
    D) 10
    E) \(\dfrac{21}{5}\)
  39. A company makes a profit equal to 25% of sales. The profit is divided equally among 4 owners. If sales = \$5,000,000, how much per owner?


    A) 12,500
    B) 312,500
    C) 500,000
    D) 1,250,000
    E) 12,500,000
  40. If \(x^3 + 2hx - 2 = 6\) when \(x=-2\), what is \(h\)?


    A) 0
    B) -2
    C) -4
    D) 4
    E) 6
  41. If \(-\dfrac{3}{a-3} = \dfrac{3}{a+2}\), find \(a\).


    A) -3
    B) -2
    C) \(\dfrac{1}{2}\)
    D) 2
    E) 3
  42. For what negative \(k\) does the system have no solutions?

    \(2x + ky = 5\) \(kx + (k+4)y = 7\)


    A) -2
    B) -5
    C) -4
    D) -7
    E) -1
  43. The two legs of a right triangle measure 6 and 8 inches. What is the area of the circle passing through all vertices?


    A) \(24\pi\)
    B) \(25\pi\)
    C) \(36\pi\)
    D) \(64\pi\)
    E) \(48\pi\)
  44. If \(X\) and \(Y\) are acute angles such that \(\tan Y = \cot X\), what is \(X + Y\) in degrees?


    A) \(90^\circ\)
    B) \(45^\circ\)
    C) \(60^\circ\)
    D) \(30^\circ\)
    E) \(120^\circ\)
  45. The measures of the sides of the right triangle below are in inches. What is the value of \(x\)?

    act problem 45


    A) \(\dfrac{1}{\sqrt{3}}\)
    B) \(\sqrt{2}\)
    C) \(\sqrt{3}\)
    D) \(\dfrac{6}{\sqrt{3}}\)
    E) \(\dfrac{2}{\sqrt{3}}\)
  46. Which of the graphs below is the solution set of \(-3x \le 12\)?

    act problem 46

  47. Which of the following lines is not parallel to \(6x - 2y = 10\)?


    A) \(3x - y = 7\)
    B) \(-6x + 2y = 20\)
    C) \(3x + y = 7\)
    D) \(6x - 2y = 5\)
    E) \(x - \dfrac{y}{3} = 9\)
  48. For what value of \(k\) does the equation below have no solutions?

    \(2x + 3 = x - 2kx - 5\)


    A) 1
    B) 2
    C) -1
    D) 0.5
    E) -0.5
  49. \(|5 - 2| - |6 - 9| = ?\)


    A) 6
    B) 0
    C) -8
    D) 22
    E) -6
  50. What is the average of \(\dfrac{7}{8}\) and \(\dfrac{3}{4}\)?


    A) \(\dfrac{13}{8}\)
    B) \(\dfrac{5}{6}\)
    C) \(\dfrac{5}{3}\)
    D) \(\dfrac{5}{12}\)
    E) \(\dfrac{13}{16}\)
  51. A solution is made of water and pure acid. If 75% of the solution is water, how many liters of pure acid are in 20 liters?


    A) 10
    B) 15
    C) 25
    D) 5
    E) 20
  52. The total surface area of all six sides of this rectangular box is 128 in². What is \(x\)?

    act problem 52


    A) 6
    B) 4
    C) 16
    D) 8
    E) 12
  53. The diagonal of a square measures 12 inches. What is the perimeter?


    A) \(6\sqrt{2}\)
    B) 72
    C) \(24\sqrt{2}\)
    D) 144
    E) 48
  54. The lengths in the rectangle below are in inches. What is the shaded area?

    act problem 54


    A) 70
    B) 34
    C) 21
    D) 8
    E) 38
  55. In the right triangle \(ABC\), \(C\) is right and \(\angle B = 60^\circ\). If \(\overline{BC} = 20\) in, how long is \(\overline{AC}\)?

    act problem 55


    A) \(20\sqrt{3}\)
    B) 20
    C) \(\sqrt{3}\)
    D) 40
    E) \(\dfrac{20}{\sqrt{3}}\)
  56. In the figure below, \(ABC\) is right. \(ABDE\) is a square of area 200 and \(BCGF\) is a square of area 100. What is \(\overline{AC}\)?

    act problem 56


    A) \(10\sqrt{3}\)
    B) \(10\sqrt{2}\)
    C) 300
    D) 10
    E) 15
  57. If \(x = 2.0001\), which expression has the largest value?


    A) \(\dfrac{2}{x+2}\)
    B) \(\dfrac{2}{x-2}\)
    C) \(\dfrac{x+2}{2}\)
    D) \(\dfrac{2}{x}\)
    E) \(\dfrac{x}{2}\)
  58. In the rectangle below, \(\overline{AD} = 3\overline{AB}\). What is the slope of \(\overline{BD}\)?

    act problem 58


    A) 3
    B) \(\dfrac{1}{3}\)
    C) \(-\dfrac{1}{3}\)
    D) -3
    E) \(-\dfrac{1}{4}\)
  59. What is the product of the two real solutions of the equation:

    \(2x = 3 - x^2\)


    A) 3
    B) 2
    C) -2
    D) 6
    E) -3
  60. Which equation corresponds to the data in this table?

    xy
    -20-1/8
    -10-1/3
    01/2
    52/9
    201/12

    A) \(y = \dfrac{1}{x+2}\)
    B) \(y = \dfrac{2}{x+4}\)
    C) \(y = \dfrac{x-1}{x+2}\)
    D) \(y = \dfrac{2}{x-2}\)
    E) \(y = \dfrac{1}{2x+2}\)

Answers to the Above Questions
  1. D
  2. C
  3. A
  4. D
  5. E
  6. B
  7. D
  8. B
  9. A
  10. C
  11. D
  12. C
  13. B
  14. D
  15. C
  16. C
  17. E
  18. D
  19. E
  20. E
  21. D
  22. A
  23. D
  24. C
  25. C
  26. B
  27. D
  28. E
  29. C
  30. D
  31. A
  32. E
  33. B
  34. E
  35. C
  36. C
  37. A
  38. E
  39. B
  40. C
  41. C
  42. A
  43. B
  44. A
  45. A
  46. C
  47. C
  48. E
  49. B
  50. E
  51. D
  52. A
  53. C
  54. E
  55. A
  56. A
  57. B
  58. C
  59. E
  60. B

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