Pariksha SaathiQuantitative Aptitude
Bar Graph: Practice Questions with Answers
14 practice questions on Bar Graph, with answers; most also have an explanation or a worked solution. Try each one before you open its answer.
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Q.1
Using the same data, find the ratio of books sold in March to books sold in April.
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Answer: 1 : 2
Solution:
- Ratio = 90 : 180.
- Dividing both terms by their HCF, 90: 1 : 2.
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Q.2
Using the same data, in which month-to-month transition was the percentage DECREASE the highest, and what was that percentage?
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Answer: February to March, a 40% decrease
Solution:
- Check every transition: Jan→Feb is an increase. Feb→Mar: decrease of 60, (60/150)×100 = 40%. Mar→Apr is an increase. Apr→May: decrease of 20, (20/180)×100 ≈ 11.1%.
- The highest decrease is Feb→Mar at 40%.
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Q.3
Using the same data (January 120, February 150, March 90, April 180, May 160), find the average number of books sold per month over the five months.
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Answer: 140 books
Solution:
- Sum = 120 + 150 + 90 + 180 + 160 = 700.
- Average = 700 / 5 = 140.
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Q.4
Using the same data, in which match was the difference between the two batsmen's scores the largest, and what was that difference?
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Answer: Match 3, a difference of 20 runs
Solution:
- Match 1: |55−40| = 15. Match 2: |65−50| = 15. Match 3: |70−50| = 20.
- The largest difference is in Match 3, at 20 runs.
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Q.5
A bar graph's y-axis starts at 80 (not 0). Two bars correspond to actual values of 92 and 96. A quick glance makes the second bar look like a huge jump because of the truncated axis. Find the actual percentage increase from the first bar to the second.
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Answer: ≈ 4.35%
Solution:
- Always compute from the real values, not the visual bar heights: increase = 96 − 92 = 4.
- Percentage increase = (4/92) × 100 ≈ 4.35%.
- This is a modest increase, even though a truncated axis starting at 80 can make it look dramatic.
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Q.6
A grouped bar graph shows runs scored by two batsmen over 3 matches: Match 1: A = 40, B = 55; Match 2: A = 65, B = 50; Match 3: A = 50, B = 70. Find the total runs scored by each batsman.
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Answer: A = 155 runs, B = 175 runs
Solution:
- A's total = 40 + 65 + 50 = 155.
- B's total = 55 + 50 + 70 = 175.
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Q.7
A bar graph shows the number of books sold by a store over five months: January 120, February 150, March 90, April 180, May 160. Find the percentage increase in books sold from January to February.
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Answer: 25%
Solution:
- Increase = 150 − 120 = 30.
- Percentage increase = (30/120) × 100 = 25%.
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Q.8
Using the same data, find the ratio of books sold in January to books sold in May.
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Q.9
Using the product sales data (Q1: X=30,Y=45; Q2: X=50,Y=40; Q3: X=45,Y=65), find the average quarterly sales of Product Y.
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Q.10
Using the same data, find the total books sold in January, February and March combined.
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Q.11
A grouped bar graph shows sales (₹ thousand) of two products over 3 quarters: Q1: X=30, Y=45; Q2: X=50, Y=40; Q3: X=45, Y=65. Find the total sales for each product.
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Q.12
Using the same data, in which quarter was the difference between X and Y sales the largest?
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Q.13
Using the same data (January 120, February 150, March 90, April 180, May 160 books), find the percentage increase in books sold from March to April.
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Q.14
A bar graph's y-axis starts at 50 (not 0). Two bars correspond to actual values of 61 and 64. Find the actual percentage increase from the first to the second.
How these questions were made
Written by Mahesh Srivastava, Founder of Pariksha Saathi. Published: 2026-10-05.