[ CBSE CLASS 6 / COMPUTATIONAL THINKING / CHAPTER 4 / 2026-27 ]

Class 6 Data Handling and Presentation: Computational Thinking Questions and Answers

The Data Handling and Presentation CT chapter is about turning raw information into tallies, pictographs and bar graphs, then reading them to answer questions. Choosing what to count and which scale to use is abstraction; reading a graph for the answer is pattern recognition.

Practise 6 questions Printable worksheet
Skills: Abstraction · Decomposition · Pattern recognition · Linked to Ganita Prakash Chapter 4: Data Handling and Presentation

[ WORKED EXAMPLE ]

A tally shows one bundle (four lines crossed by a fifth) followed by three more lines. What number is it?

Answer: 8.

  1. One bundle = 5.
  2. Three single lines = 3.
  3. 5 + 3 = 8.

What this chapter is about

Students collect data, organise it with tally marks, and show it as pictographs and bar graphs.

CT questions focus on decisions: which scale fits the data, what one picture should stand for, and which graph answers which question.

Combining or comparing two data sets trains decomposition: work out each part, then put them together.

[ PRACTICE MODE / 6 QUESTIONS ]

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AbstractionQuestion 1 of 6 · Score 0

A tally shows one bundle (four lines crossed by a fifth) followed by three more lines. What number is it?

Choose one answer

All Data Handling and Presentation questions with answers

Try each one first, then open it to check the answer and the reasoning.

Q1A tally shows one bundle (four lines crossed by a fifth) followed by three more lines. What number is it?
  • 3
  • 5
  • 8
  • 9

Answer: C. 8

Hint: A crossed bundle stands for 5.

  1. One bundle = 5.
  2. Three single lines = 3.
  3. 5 + 3 = 8.

Skill: Abstraction · Level: easy · Report an error

Q2In a pictograph, one apple symbol stands for 10 apples. A row shows 3½ symbols. How many apples is that?
  • 30
  • 35
  • 40
  • 350

Answer: B. 35

Hint: Half a symbol stands for half of 10.

  1. 3 full symbols = 3 × 10 = 30.
  2. Half a symbol = 5.
  3. 30 + 5 = 35 apples.

Skill: Abstraction · Level: easy · Report an error

Q3A bar graph shows books borrowed: Mon 20, Tue 35, Wed 15, Thu 30. How many books in total?
  • 90
  • 95
  • 100
  • 105

Answer: C. 100

Hint: Group numbers that make easy totals.

  1. 20 + 30 = 50.
  2. 35 + 15 = 50.
  3. 50 + 50 = 100 books.

Skill: Decomposition · Level: easy · Report an error

Q4In a bar graph of favourite fruits, which bar shows the most popular fruit?
  • The tallest bar
  • The widest bar
  • The first bar
  • The most colourful bar

Answer: A. The tallest bar

Hint: In a bar graph, what does the height of a bar show?

  1. Each bar’s height shows how many people chose that fruit.
  2. All bars should be the same width, so width tells you nothing.
  3. The tallest bar shows the most popular fruit.

Skill: Pattern recognition · Level: easy · Report an error

Q5You must draw bars for 120, 80, 200 and 160 on a grid that is 10 squares tall. Which scale fits best?
  • 1 square = 5
  • 1 square = 10
  • 1 square = 20
  • 1 square = 100

Answer: C. 1 square = 20

Hint: The biggest value, 200, must fit in 10 squares.

  1. With 1 square = 10, 200 needs 20 squares: too tall.
  2. With 1 square = 100, every bar is only 1–2 squares: hard to compare.
  3. With 1 square = 20, 200 needs exactly 10 squares and the others are 6, 4 and 8.

Skill: Abstraction · Level: challenge · Report an error

Q6Class A: 12 like cricket, 8 like football. Class B: 9 like cricket, 15 like football. Together, how many more like football than cricket?
  • 2
  • 3
  • 4
  • 6

Answer: A. 2

Hint: Find each total first, then compare.

  1. Cricket: 12 + 9 = 21.
  2. Football: 8 + 15 = 23.
  3. 23 − 21 = 2 more like football.

Skill: Decomposition · Level: medium · Report an error

Frequently asked questions

What does the Class 6 Data Handling and Presentation Computational Thinking chapter cover?

The Data Handling and Presentation CT chapter is about turning raw information into tallies, pictographs and bar graphs, then reading them to answer questions. Choosing what to count and which scale to use is abstraction; reading a graph for the answer is pattern recognition.

Which computational thinking skills does Data Handling and Presentation use?

Data Handling and Presentation mainly practises abstraction, decomposition, pattern recognition. It links to Ganita Prakash Chapter 4: Data Handling and Presentation.

Where are the official CBSE Data Handling and Presentation questions?

The official questions are in the CBSE Class 6 Computational Thinking and AI handbook for 2026-27, free on the CBSE Academic website. The practice on this page is original and mapped to the same chapter.

More Class 6 chapters