Introduction to Graphs Practice Questions

Class 8 · Mathematics · 808 free MCQs with instant results and detailed explanations.

808

Total

330

Easy

397

Medium

Hard

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Topics in Introduction to Graphs

Linear Graphs 217

Line Graphs 308

Bar Graphs 283

Sample Questions from Introduction to Graphs

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Easy

A bar graph shows the number of books read by different students in a month. If Alice read 5 books, Bob read 8 books, Charlie read 3 books, and Dana read 6 books, which student read the most books?

A. Bob

B. Dana

C. Alice

D. Charlie

Show Answer & Explanation

Correct Answer: A

Bob read the most books with a total of 8, compared to others.

Easy

What is the purpose of a bar graph?

A. To show relationships between data

B. To represent data using bars of different heights

C. To display data in a circular format

D. To show trends over time

Show Answer & Explanation

Correct Answer: B

A bar graph visually represents data using bars of different heights to compare different categories.

Easy

Which of the following is not a characteristic of a bar graph?

A. Bars can be vertical or horizontal

B. Bars represent quantities

C. Data is represented with points

D. The length of each bar corresponds to its value

Show Answer & Explanation

Correct Answer: C

In a bar graph, data is represented with bars, not points.

Medium

If a bar graph represents the number of pets owned by students, and the tallest bar shows 12 pets, what can you conclude?

A. Most students own 12 pets

B. Some students own 12 pets

C. Average pets is 12

D. 12 pets is the least owned

Show Answer & Explanation

Correct Answer: B

The tallest bar indicates the maximum number of pets owned by a few students, not all.

Medium

In a bar graph showing monthly expenses, which of the following is NOT a valid reason for a bar to be shorter than another?

A. Lower expense category

B. Data entry error

C. Different months compared

D. Higher savings

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Correct Answer: D

Higher savings do not affect the height of the bar representing expenses.

Medium

If the bar graph indicates that 100 students took a survey about favorite fruits, and 40 chose apples, how many chose fruits other than apples?

A. 60

B. 50

C. 40

D. 30

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Correct Answer: A

Total students - students who chose apples = 100 - 40 = 60.

Medium

A school surveyed students on their favorite subjects. If the bar graph shows 25 students liked Math the most, what fraction of students does that represent if 100 students were surveyed?

A. 1/4

B. 1/5

C. 1/3

D. 1/2

Show Answer & Explanation

Correct Answer: A

Fraction = 25/100 = 1/4.

Hard

A bar graph shows the number of books read by students in a month. If the tallest bar represents 20 books, what does this indicate?

A. One student read 20 books.

B. All students read 20 books.

C. The average number of books is 20.

D. At least one student read 20 books.

Show Answer & Explanation

Correct Answer: D

The tallest bar indicates the maximum count which means at least one student read that many books.

Hard

In a bar graph, if the height of the bar for Saturday is 12 cm and Sunday is 16 cm, what is the difference in height between these two bars?

A. 4 cm

B. 2 cm

C. 8 cm

D. 3 cm

Show Answer & Explanation

Correct Answer: A

The difference in height = Sunday (16 cm) - Saturday (12 cm) = 4 cm.

Q10

Hard

In a bar graph comparing temperatures over a week, if Monday's temperature bar is twice that of Wednesday's which is 10°C, what is Monday's temperature?

A. 15°C

B. 20°C

C. 25°C

D. 10°C

Show Answer & Explanation

Correct Answer: B

If Wednesday is 10°C, then Monday's temperature is 10°C * 2 = 20°C.

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Introduction to Graphs — Class 8 Mathematics Practice Questions Online

This page contains 808 practice MCQs for the chapter Introduction to Graphs in Class 8 Mathematics. The questions are organized by difficulty — 330 easy, 397 medium, 81 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.