# NCERT Solutions for Class 6 Maths Chapter 9 Data Handling (Ex 9.1) Exercise 9.1

## NCERT Solutions for Class 6 Maths Chapter 9 Data Handling (Ex 9.1) Exercise 9.1

Data Handling is one of the most essential chapters for revising this chapter for the examination. The fundamentals of Data Handling are covered in Class 6, and they will also be covered in higher classes. In order to increase their learning abilities, students should acquire and comprehend the fundamental concepts and approaches to solving problems from these NCERT Solutions for Class 6 Maths Chapter 9 Exercise 9.1. The concepts of Data Handling are covered in Class 6 Maths, Chapter 9, Exercise 9.1. In this chapter, students study the idea of gathering, organizing, and managing data. Data Handling is a difficult chapter, but the solutions to Class 6th Maths, Exercise 9.1 attempt to make it simpler. This chapter aims to give the conceptual information needed to understand this chapter.

This chapter explains an introduction to data and how it might be used in daily life. There are quite a few examples from actual life. Once that is done, it gradually teaches key concepts like data recording and organization. Students also learn more about pictographs, their interpretation, and how to draw one. In this chapter, they also encounter several bar graphs. Students may get the NCERT Solutions for Class 6 Maths, Chapter 9, Exercise 9.1, online in PDF format. They are simple to download for them to use in their exam preparation. An introduction to data and its practical uses opens the chapter on Data Handling for Class 6.

Data Collection is a necessary aspect of normal life. Data Handling,  Maths Class 6 Chapter 9 Exercise 9.1, provides more details on this concept. There are numerous ways to record data, and in this section, students encounter one such method. Here, the process has been made simpler by using an example. The teacher asks for everyone’s name and their favorite fruit before the class picnic. One of the two ways used to obtain the whole set of data appears to be more manageable than the other. With the help of this illustration from Exercise 9.1, Class 6th, students may learn how data collection at random might risk the entire process. In order to grasp this concept, it also challenges students to apply it in the actual world.

If data collection is not organized appropriately, it might be difficult. Students should be aware of this notion in this regard. This notion is further explained via data processing for Class 6. This section demonstrates how to organize data by using the queue from the previous example. Another illustration demonstrates that a teacher wishes to compile information on food preferences for the midday meal program. One of her students is given this duty by the teacher. She displays the options using columns, but another student offered a more effective way to organize the information by Data Handling. Students can understand it better with the help of the NCERT Solutions for Class 6 Maths, Chapter 9, Exercise 9.1.

### Access Other Exercises of Class 6 Maths Chapter 9

 Chapter 9 – Data Handling Exercises Exercise 9.2 2 Questions & Solutions Exercise 9.3 3 Questions & Solutions Exercise 9.4 4 Questions & Solutions

## NCERT Solutions for Class 6 Maths, Chapter 9: Data Handling (Ex 9.1) Exercise 9.1

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## Access NCERT Solutions for Class 6 Maths Chapter 9- Data Handling

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## NCERT Solutions for Class 6 Maths, Chapter 9: Data Handling, Exercise 9.1

Students must approach the NCERT Solutions for Class 6 Maths, Chapter 9, Exercise 9.1, by considering how changing the inputs to the same formula impacts the outcome. The NCERT solutions are simple to understand and give students the opportunity to use the data sets and comprehend the input-output relationship of this formula. These NCERT Solutions for Class 6 Maths Chapter 9 Exercise 9.1 will give students the practice they need to comprehend the concepts. In order to thoroughly understand the process and acquire the principles of Maths, which have immense practical worth, these problems should be addressed step-by-step.

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Q.1 In a Maths test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.

8 1 3 7 6 5 5 4 4 2

4 9 5 3 7 1 6 5 2 7

7 3 8 4 2 8 9 5 8 6

7 4 5 6 9 6 4 4 6 6

(a) Find how many students obtained marks equal to or more than 7.

(b) How many students obtained marks below 4?

Ans.

Arranged data in a table as given below:

 Marks Tally Marks Number of Students 1 $||$ 2 2 $|||$ 3 3 $|||$ 3 4 $\overline{)||||}||$ 7 5 $\overline{)||||}|$ 6 6 $\overline{)||||}||$ 7 7 $\overline{)||||}$ 5 8 $||||$ 4 9 $|||$ 3

(a) 12 students obtained marks equal to or more than 7.

(b) 8 students obtained marks below 4.

Q.2 Following is the choice of sweets of 30 students of Class VI.

(a) Arrange the names of sweets in a table using tally marks.

(b) Which sweet is preferred by most of the students?

Ans.

(a)

 Sweets Tally Marks Number of Students Ladoo $\overline{)||||}\text{\hspace{0.17em}}\text{\hspace{0.17em}}\overline{)||||}\text{\hspace{0.17em}}\text{\hspace{0.17em}}|$ 11 Barfi $|||$ 3 Jalebi $\overline{)||||}\text{\hspace{0.17em}}||$ 7 Rasgulla $\overline{)||||}\text{\hspace{0.17em}}||||$ 9 30

(b) Ladoo is preferred by most of the students.

Q.3 Catherine threw a dice 40 times and noted the number appearing each time as shown below:
1 3 5 6 6 3 5 4 1 6 2 5 3 4 6 1 5 5 6 1 1 2 2 3
5 2 4 5 5 6 5 1 6 2 3 5 2 4 1 5
Make a table and enter the data using tally marks. Find the number that appeared.
(a) The minimum number of times
(b) The maximum number of times
(c) Find those numbers that appear an equal number of times.

Ans.

 Numbers Tally Marks Number of times 1 $\overline{)||||}||$ 7 2 $\overline{)||||}|$ 6 3 $\overline{)||||}$ 5 4 $||||$ 4 5 $\overline{)||||}\overline{)||||}|$ 11 6 $\overline{)||||}||$ 7

(a) The number that appeared the minimum number of times is 4.
(b) The number that appeared the maximum number of times is 5.
(c) 1 and 6 both appeared 7 times.

Q.4 Following pictograph shows the number of tractors in five villages.

 Villages Number of tractors = 1 Tractor Village A Village B Village C Village D Village E

Observe the pictograph and answer the following questions.

(i) Which village has the minimum number of tractors?

(ii) Which village has the maximum number of tractors?

(iii) How many more tractors village C has as compared to village B?

(iv) What is the total number of tractors in all the five villages?

Ans.(i) Village D has minimum number of tractors.

(ii) Village C has maximum number of tractors.

(iii) Village C has 8 tractors and village B has 5 tractors. So, village C has 3 more tractors as compared to village B.

(iv) Total number of tractors in 5 villages
= 6 + 5 + 8 + 3 + 6
= 28

Q.5 The number of girl students in each class of a co-educational middle school is depicted by the pictograph:

 Classes Number of girl students -4 Girls I II III IV V VI VII VIII

Observe this pictograph and answer the following questions:
(a) Which class has the minimum number of girl students?
(b) Is the number of girls in Class VI less than the number of girls in Class V?
(c) How many girls are there in Class VII?

Ans.

(a) Class VIII has minimum number of girl students i.e., 6 girls.
(b) No, the number of girls in class VI is not less than the number of girls in class V.
(c) Number of girls in class VII is 12.

Q.6 The sale of electric bulbs on different days of a week is shown below:

 Days Number of electric bulbs = 2 bulbs Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Observe the pictograph and answer the following questions:

(a) How many bulbs were sold on Friday?

(b) On which day were the maximum number of bulbs sold?

(c) On which of the days same number of bulbs were sold?

(d) On which of the days minimum number of bulbs were sold?

(e) If one big carton can hold 9 bulbs. How many cartons were needed in the given week?

Ans.

From the given pictograph, we can conclude the following:
(a) Number of bulbs sold on Friday is 14.

(b) Maximum number of bulbs was sold on Sunday.

(c) Same number of bulbs were sold on Wednesday and Saturday.

(d) Minimum number of bulbs was sold on Wednesday and Saturday.

(e) Number of bulbs sold on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday are 12, 16, 8, 10, 14, 8 and 18 respectively. The total number of bulbs sold in the given week is 86.

Number of cartons needed in the given week =

$\frac{86}{9}=9.5$

Therefore, 9 cartons were needed in the given week.

Q.7 In a village six fruit merchants sold the following number of fruit baskets in a particular season:

 Name of fruit merchants Number of fruit baskets = 100 fruit baskets Rahim Lakhanpal Anwar Martin Ranjit Singh Joseph

Observe this pictograph and answer the following questions :
(a) Which merchant sold the maximum number of baskets?

(b) How many fruit baskets were sold by Anwar?

(c) The merchants who have sold 600 or more number of baskets are planning to buy a godown for the next season. Can you name them?

Ans.

(a) Martin sold maximum number of baskets
i.e., 950.

(b) Anwar sold baskets = 7

$×$

100
= 700
(c) The names of the merchants are Anwar, Martin and Ranjit Singh.