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Quantitative Comparison MCQs for MDCAT Practice

Math Reasoning section, Quantitative Comparison chapter. Up to eight free sample questions, each with the correct answer and a worked explanation. The full chapter opens in the app.

The bank has 55 active questions on this chapter. Your first 500 practice attempts are free, and every attempt includes a worked explanation.

  1. Question 1
    Two chords in a circle are equal in length. What can be said about their distances from the center?
    • Distances are equal (correct answer)
    • Distances are different
    • Both chords are diameters
    • One chord is tangent
    Correct answer: A
    Equal chords in a circle are equidistant from the center, a fundamental geometric property. This principle ensures symmetry and predictable relationships within circular figures.
  2. Question 2
    Five friends bake ginger bread and subsequently meet up for a tasting session. Each one gives one of his ginger breads to each other person. Then each person eats all of the ginger bread they were given. After that the number of ginger breads halves.Quantity X = the number of ginger breads the five friends had to begin with.Quantity Y = 60 Compare Quantity X and Quanity Y
    • Quantity X is greater than Quantity Y
    • Quantity Y is greater than Quantity X (correct answer)
    • Quantities X and Y are equal
    • The relationship cannot be determined from the information given
    Correct answer: B
    This question tests your ability to track quantities through a series of operations, a common theme in quantitative reasoning.
  3. Question 3
    If x + y + z = 2, and x + 2y + 3z = 6 and y ≠ 0, then what is the value of (x/y)?
    • -1⁄3
    • -1⁄6
    • 1⁄3
    • -1⁄2 (correct answer)
    Correct answer: D
    This question tests algebraic manipulation skills to solve a system of linear equations and find a specific ratio, a fundamental skill applicable across science.
  4. Question 4
    If a bar graph shows monthly sales, it best describes:
    • Qualitative data
    • Quantitative data (correct answer)
    • Nominal data
    • Binary data
    Correct answer: B
    Bar graphs depicting monthly sales represent numerical measurements, classifying them as quantitative data rather than qualitative or categorical types.
  5. Question 5
    Which is greater: 2⁴ or 4²?
    • 2⁴
    • 4²
    • Both equal (correct answer)
    • Cannot say
    Correct answer: C
    Compare exponential expressions to identify that 242^4 and 424^2 yield the same result.
  6. Question 6
    Which of the following fractions is smaller than 2?
    • 19/ 8
    • 20/9
    • 21/10
    • 23/13 (correct answer)
    Correct answer: D
    Master comparing fractions to a whole number by converting them to decimals or mixed numbers, avoiding common comparison errors.
  7. Question 7
    Which of the following figure has the maximum perimeter?[Note: All squares are of same size]
    Diagram for this question, with no written description.
    • Option A: A straight line of squares
    • Option B: A 2x2 square block
    • Option C: An L-shape with three squares
    • Option D: A zigzag pattern of squares (correct answer)
    Correct answer: D
    Maximize exposed edges to increase perimeter in arrangements of equal-sized squares.
  8. Question 8
    The measure of the angle formed between two chords intersecting inside the circle is equal to half the sum of:
    • The arcs intercepted by the angle and its vertical angle (correct answer)
    • The arcs intercepted by the angle
    • The arc opposite to the angle
    • None of the above
    Correct answer: A
    The angle formed by intersecting chords inside a circle is half the sum of the intercepted arcs, including the arc of the vertical angle.

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Read the full Quantitative Comparison chapter notes: Quantitative Comparison notes. Or browse every chapter.