AccountancyCBSE Class 12 · Graphs and Charts for Business Data

Types of Charts for Business Data: Class 12 Guide to Choosing the Right Chart

Updated 15 October 2026 · Fact-checked

Spreadsheets offer column and bar charts to compare categories, line charts to show trends over time, pie charts to show parts of one whole, doughnut charts for parts of a whole across more than one series, area charts for trends with totals, XY scatter for relationships between two variables and radar charts to compare several variables from a common centre.

Understand Types of Charts

Choose the chart by the message.

Chart	Best for	Business example
Column (vertical bars)	Comparing values across categories or periods	Sales of six products
Bar (horizontal bars)	Comparing categories with long names	Expenses by department
Line	Trends over time	Monthly profit for two years
Pie	Parts of one whole (one data series)	Share of each expense in total cost
Doughnut	Parts of a whole for more than one series (rings)	Expense shares in two years
Area	Trend plus the size of the total	Cumulative sales
XY (scatter)	Relationship between two numeric variables	Advertising spend vs sales
Radar	Several variables compared from a centre point, each with its own axis	Branch scores on quality, delivery, price, service

2-D and 3-D. Most types come in 2-D and 3-D versions; 3-D charts add a depth (series) axis. 3-D can look attractive but can distort comparison.

Axes. Column, bar, line and area charts have a category axis and a value axis; pie and doughnut charts have no axes; radar charts have value axes radiating from the centre and no horizontal axis.

Pie chart arithmetic. Each slice's angle = value ÷ total × 360°; its share = value ÷ total × 100%.

Combination charts. Two types can be combined, such as columns for sales and a line for profit margin on a secondary axis.

Common errors. Pie charts with many tiny slices or with values that do not form a whole; line charts for unrelated categories; 3-D effects hiding true sizes.

Types of Charts: key facts

Pie slice angle: Value ÷ Total × 360°
Pie slice share: Value ÷ Total × 100%
Chart choice: 1.Compare
2.column/bar; Trend
3.line/area; Share
4.pie/doughnut; Relationship
5.scatter; Profile
6.radar

How to answer Types of Charts questions

Chart-choice questions are solved by naming the message first and then the chart that carries it best.

1Ask what the reader should see: comparison, trend, share, relationship or profile.
2Comparison → column or bar; trend over time → line (or area).
3Share of one whole → pie; shares for two or more series → doughnut.
4Relationship between two numbers → XY scatter; several attributes per item → radar.
5For pie questions, compute shares and angles from the total.
6Mention any limitation (for example, a pie takes only one series).

Types of Charts in real life

The idea, met in an everyday situation. Answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Pie chart of expenses

Suppose a small coaching centre spends ₹1,20,000 a month: rent ₹30,000, salaries ₹60,000, electricity ₹12,000 and marketing ₹18,000. The owner wants one picture showing where the money goes.

Which chart suits this, and what angle and share does each slice have?

Try it first, then show the solutionSolution

Parts of a single whole: pie chart.
Rent 30,000/1,20,000 = 25% → 90°; salaries 50% → 180°.
Electricity 10% → 36°; marketing 15% → 54°; angles total 360°.

Answer: A pie chart: salaries 180° (50%), rent 90° (25%), marketing 54° (15%) and electricity 36° (10%). It shows at a glance that salaries take half the spending.

Memory hook: One whole, one pie.

Tricks to remember Types of Charts

Short memory aids. Say each one aloud once, then use it on a question the same day.

C-T-S-R-P
Compare = Column, Trend = line, Share = pie, Relationship = scatter, Profile = radar.
Use it when: Matching charts to purpose.
Pie = one, doughnut = many
A pie takes one series; a doughnut stacks rings for several.
Use it when: Pie vs doughnut MCQs.
No axes for round charts
Pie and doughnut have no axes; radar has no horizontal axis.
Use it when: Chart elements questions.

Types of Charts: solved examples

Ordered from board level to HOTS. Try each one before you open the solution.

Example 1: Trend over time · 1 mark · MCQBoard level

To show monthly sales over two years, the most suitable chart is:
(a) pie chart
(b) line chart
(c) doughnut chart
(d) radar chart

Try it first, then show the solutionSolution

Trends over time are best shown by a line chart.

Answer: (b) line chart

Example 2: Match purpose to chart · 3 marks · Short answerBoard level

Name the chart best suited to: (i) share of each product in total sales of one year; (ii) comparing sales of five branches; (iii) relationship between advertising spend and sales. (3 marks)

Try it first, then show the solutionSolution

(i) Pie chart (parts of one whole).
(ii) Column or bar chart (comparison).
(iii) XY scatter chart (relationship).

Answer: (i) Pie; (ii) column/bar; (iii) XY scatter.

Example 3: Radar chart · 3 marks · Short answerHarder board level

Explain a radar chart and give a business situation where it is useful. (3 marks)

Try it first, then show the solutionSolution

A radar chart plots several variables on axes radiating from a centre point; each series forms a polygon.
It compares profiles: which item is strong or weak on each variable.
Example: comparing three suppliers on price, quality, delivery time and service.

Answer: As explained, with a supplier or branch comparison example.

Example 4: Pie or doughnut? · 3 marks · Short answerHarder board level

A firm wants to show the share of each expense in total cost for 2024-25 and 2025-26 in one chart. Which chart should it use and why not a pie? (3 marks)

Try it first, then show the solutionSolution

Two series (two years) of parts of a whole are to be shown.
A pie chart can plot only one data series.
A doughnut chart shows each year as a ring, so both can be compared.

Answer: A doughnut chart, because a pie chart can show only one data series.

Example 5: Pie chart limits · 1 mark · Assertion-reasonHOTS / competency

Assertion (A): A pie chart is suitable for showing the monthly sales of a firm over three years.
Reason (R): A pie chart shows the parts of a single whole for one data series.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.

Try it first, then show the solutionSolution

Monthly sales over three years is a trend with 36 points and three series; a line chart suits it. A is false, R is true.

Answer: (d) A is false, but R is true.

Where students lose marks in Types of Charts

The slips examiners see most often, and what to write instead.

Mistake: Using a pie for trends
Pie charts look attractive.
Wrong working
Pie chart of monthly sales.
Right working
Line chart for trends.
Do this: Match chart to message.
Usually costs: 1 mark.
Mistake: Angles not adding to 360°
Using percentages as degrees.
Wrong working
Rent slice = 25°.
Right working
Rent slice = 25% × 360 = 90°.
Do this: Multiply share by 360.
Usually costs: 1 mark.
Mistake: Saying pie charts have axes
Generalising from bar charts.
Wrong working
'Pie chart: X-axis shows items.'
Right working
Pie and doughnut charts have no axes.
Do this: Remember round charts have no axes.
Usually costs: 1 mark.
Mistake: Confusing bar and column
Both use bars.
Wrong working
Bar chart = vertical bars.
Right working
Column = vertical; bar = horizontal.
Do this: Columns stand up; bars lie down.
Usually costs: 1/2 mark.

Exam tips

Give a reason with every chart choice.
Show pie angle calculations as value ÷ total × 360.
Know which charts have no axes (pie, doughnut) or no horizontal axis (radar).
Chart types appear as 1-mark MCQs and 3-mark 'which chart' questions; radar charts featured in recent board papers.

Practice questions on Types of Charts

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

Q1 · 1 mark · MCQBoard level
A chart that can show only one data series is the:
(a) column chart
(b) line chart
(c) pie chart
(d) doughnut chart
Hint
Parts of one whole.
Answer
(c) pie chart
Q2 · 1 mark · MCQBoard level
Which chart has no horizontal axis but compares several variables from a centre point?
(a) Radar chart
(b) Area chart
(c) Bar chart
(d) Scatter chart
Hint
Spider-web shape.
Answer
(a) Radar chart
Q3 · 3 marks · Short answerHarder board level
Expenses: rent ₹40,000, wages ₹1,00,000, power ₹20,000, other ₹40,000. Calculate the angle of each slice in a pie chart. (3 marks)
Hint
Total ₹2,00,000.
Answer
Rent 72°, wages 180°, power 36°, other 72° (shares 20%, 50%, 10%, 20%; total 360°).
Q4 · 3 marks · Short answerHarder board level
Distinguish between a column chart and a line chart with one use of each. (3 marks)
Hint
Comparison vs trend.
Answer
A column chart shows values as vertical bars and suits comparing categories, e.g. sales of five branches. A line chart joins data points with lines and suits trends over time, e.g. monthly profit over two years.
Q5 · 3 marks · Short answerHarder board level
When would an area chart be preferred to a line chart? (3 marks)
Hint
Magnitude of totals.
Answer
When the reader should see not just the trend but the size of the total and each series' contribution over time, e.g. cumulative sales by product line; the filled area emphasises magnitude.
Q6 · 1 mark · Assertion-reasonHarder board level
Assertion (A): 3-D charts can make comparisons less accurate.
Reason (R): Perspective and depth can distort the apparent size of bars or slices.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Hint
Visual distortion.
Answer
(a) Both A and R are true, and R is the correct explanation of A.
Q7 · 4 marks · Short answerHOTS / competency
Suppose a manager wants one chart showing monthly sales (in rupees) and profit margin (in %) together. What chart would you suggest and how? (4 marks)
Hint
Combination chart with a secondary axis.
Answer
A combination chart: sales as columns on the primary value axis and profit margin as a line on a secondary axis, because the two series use different units and scales. This shows whether margin moves with sales.
Q8 · 3 marks · Short answerHOTS / competency
A student draws a pie chart of 'sales of Pens, Files and Paper in 2024-25 and 2025-26' by putting all six figures in one pie. What is wrong and what should be done? (3 marks)
Hint
One series per pie.
Answer
The six values belong to two different wholes (two years), so one pie mixes two totals and the shares are meaningless. Use two pies (one per year), a doughnut chart with two rings, or a clustered column chart to compare years.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1.Which chart suits trends over time?Show answer
Line chart.
2.How many data series can a pie chart show?Show answer
One.
3.Pie slice angle formula?Show answer
Value ÷ total × 360°.
4.Which chart shows parts of a whole for more than one series?Show answer
Doughnut chart.
5.Which chart shows the relationship between two numeric variables?Show answer
XY (scatter) chart.

Types of Charts: frequently asked questions

What are the main types of charts in Class 12 Accountancy?

Column, bar, line, pie, doughnut, area, XY scatter and radar, in 2-D and 3-D versions.

What is the difference between a pie and a doughnut chart?

A pie shows one series as slices of a whole; a doughnut shows one or more series as rings.

When is a radar chart used?

To compare several items across many variables, each with its own axis from a common centre.

Do pie charts have axes?

No. Pie and doughnut charts have no axes.