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GMAT Data Interpretation — practice questions

Explore 66 free Data Interpretation questions in GMAT Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Data Interpretation questions and exercises with answers

Showing questions 1–30 of 66.

Which chart shows numerical proportion as slices of a circle?Read the answer and worked solution →In a pie chart, the central angle of a slice is proportional to what?Read the answer and worked solution →The sum of all central angles in a complete pie chart is how many degrees?Read the answer and worked solution →A slice that is a fraction Q of the whole has a central angle of what?Read the answer and worked solution →Who is generally credited with the earliest known pie chart?Read the answer and worked solution →A pie chart variant with a blank centre is called what?Read the answer and worked solution →A pie chart with one or more sectors pulled away from the rest is called what?Read the answer and worked solution →A waffle chart usually uses a grid of 10 by 10 cells. What does each cell show?Read the answer and worked solution →In a polar area chart, how do the sectors differ from each other?Read the answer and worked solution →Why is a pie chart unsuitable for showing very many values?Read the answer and worked solution →A budget of Rs 7200 is shown in a pie chart. Rent has a 90 degree sector. Rent is?Read the answer and worked solution →What central angle represents 40 percent of a pie chart?Read the answer and worked solution →A sector with a central angle of 72 degrees is what percent of the whole?Read the answer and worked solution →Of 600 students, 120 like cricket. What central angle shows cricket in a pie chart?Read the answer and worked solution →A pie chart shows 2000 people. A sector of 108 degrees stands for how many people?Read the answer and worked solution →Three sectors measure 120, 90 and 60 degrees. What angle does the fourth sector have?Read the answer and worked solution →Two sectors take 30 percent and 45 percent of 800 people. How many people lie between them?Read the answer and worked solution →A sector with 35 percent of a pie chart equals 700 units. What is the whole total?Read the answer and worked solution →Savings are 20 percent of Rs 50000 in a pie chart. What is the savings angle?Read the answer and worked solution →Total marks are 500. Maths has a 144 degree sector. How many marks is that?Read the answer and worked solution →Boys and girls take sectors of 150 and 90 degrees. What is the boys to girls ratio?Read the answer and worked solution →A pie chart is cut into equal sectors of 45 degrees each. How many sectors are there?Read the answer and worked solution →A sector shows 12 percent of 1500 items. How many items does it show?Read the answer and worked solution →Two sectors together measure 135 degrees. Of 800 people, how many do they cover?Read the answer and worked solution →A bar chart presents what kind of data with bars of proportional length?Read the answer and worked solution →A vertical bar chart is sometimes called a what?Read the answer and worked solution →Bar charts arranged from highest to lowest incidence are called what?Read the answer and worked solution →Which bar chart stacks bars on top of each other to show a combined result?Read the answer and worked solution →Who is considered by many to have invented the bar chart?Read the answer and worked solution →A bar chart is best used to show comparisons among what?Read the answer and worked solution →

Worked practice questions

Which chart shows numerical proportion as slices of a circle?

  1. Line chart
  2. Bar chart
  3. Histogram
  4. Pie chart
Show answer and solution

Correct answer: D. Pie chart

A pie chart divides a circle into slices whose sizes show each share of the whole.

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In a pie chart, the central angle of a slice is proportional to what?

  1. The colour used
  2. The chart title
  3. The slice order
  4. The value it shows
Show answer and solution

Correct answer: D. The value it shows

Arc length, central angle and area of each slice all scale with the quantity it stands for.

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The sum of all central angles in a complete pie chart is how many degrees?

  1. 180
  2. 270
  3. 100
  4. 360
Show answer and solution

Correct answer: D. 360

The slices fill a full circle, so their angles must add up to one complete turn of 360 degrees.

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More Reasoning topics

Data Sufficiency