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GMAT Data Interpretation — practice questions — page 2

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 31–60 of 66.

Bars in a variwide chart differ from ordinary bars in having what?Read the answer and worked solution →Sales in four months were 40, 55, 45 and 60 units. Which month had the highest sales?Read the answer and worked solution →Sales rose from 40 units in January to 55 in February. What is the percent rise?Read the answer and worked solution →Bars show output of 120, 150 and 180 units over three years. What is the mean output?Read the answer and worked solution →Bars for A and B read 45 and 30. What is the ratio of A to B?Read the answer and worked solution →A value goes from 250 to 200 between two bars. What is the percent decrease?Read the answer and worked solution →Exports were Rs 60 crore, 75 crore and 90 crore in 2019, 2020, 2021. Growth over 2019 to 2021?Read the answer and worked solution →Exports were 60, 75 and 90 crore in three years. Which year-on-year growth was higher?Read the answer and worked solution →Monthly rain is 20, 35, 50, 45 and 30 mm. What is the mean rainfall?Read the answer and worked solution →Four bars read 20, 30, 50 and 100. What share of the total is the tallest bar?Read the answer and worked solution →A line chart joins data points called markers using what?Read the answer and worked solution →On a line chart, which variable is often placed on the x-axis?Read the answer and worked solution →A line chart resembles a scatter plot except that its points are what?Read the answer and worked solution →Temperature readings were 24, 26, 29 and 31 degrees. What was the total rise?Read the answer and worked solution →Profit in lakh rupees was 12, 15, 9 and 18 in four years. In which year was there a fall?Read the answer and worked solution →Profit fell from 15 lakh to 9 lakh in a year. What is the percent fall?Read the answer and worked solution →Speed rises steadily from 20 to 50 km/h in 5 seconds. What is the rise per second?Read the answer and worked solution →Population grew from 40000 to 46000 in three years. What is the mean yearly rise?Read the answer and worked solution →A price moves 50, 60 and then 54. What is the percent fall from the peak?Read the answer and worked solution →A car covers 60 km in 1.5 hours. What speed does the slope of its path show?Read the answer and worked solution →Closing values are 100, 120 and 90 on three days. What is the largest daily change?Read the answer and worked solution →A histogram differs from a bar chart because each bin covers what?Read the answer and worked solution →Who first introduced the term histogram?Read the answer and worked solution →Histogram bins are usually what kind of intervals?Read the answer and worked solution →Class intervals 0-10, 10-20, 20-30 have frequencies 5, 12 and 8. Which is the modal class?Read the answer and worked solution →Class frequencies are 4, 9, 14, 7 and 6. How many observations are there in all?Read the answer and worked solution →Frequencies are 6, 10 and 14 across three classes. What is the final cumulative frequency?Read the answer and worked solution →Pass rates: 60% of 100 trainees; 75% of 200. Overall pass rate?Read the answer and worked solution →20 sacks average 25 kg; 30 average 30 kg. Combined mean mass?Read the answer and worked solution →8 bills average Rs 450. Rs 720 was entered as Rs 270. Correct mean?Read the answer and worked solution →

Worked practice questions

Bars in a variwide chart differ from ordinary bars in having what?

  1. Non-uniform widths
  2. Missing labels
  3. Curved bar tops
  4. Equal heights
Show answer and solution

Correct answer: A. Non-uniform widths

Variwide means variable width, so bar area equals a product of two related quantities.

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Sales in four months were 40, 55, 45 and 60 units. Which month had the highest sales?

  1. Month 1
  2. Month 2
  3. Month 3
  4. Month 4
Show answer and solution

Correct answer: D. Month 4

The largest of 40, 55, 45 and 60 is 60, which belongs to the fourth month.

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Sales rose from 40 units in January to 55 in February. What is the percent rise?

  1. 15 percent
  2. 27.5 percent
  3. 37.5 percent
  4. 40 percent
Show answer and solution

Correct answer: C. 37.5 percent

The rise is 15 on a base of 40, and 15/40 is 0.375, or 37.5 percent.

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