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

Exercise 9.1

1. In a mathematics test the following marks were obtained by $40$ students. Arrange these marks in a table using tally marks.

\begin{array}{*{20}{c}}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 \\ \end{array}

Ans: Make a frequency table and denote the frequency of marks by vertical bars.

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

Ans: From the frequency table, the frequency of $7$ marks is five students, frequency of $8$ marks is four students and frequency of $9$ marks is three students. So, $5 + 4 + 3 = 12$ students obtained marks equal to or more than $7$.

(b) How many students obtained marks below $4$?

Ans: : From the frequency table, the frequency of $3$ marks is three students, frequency of $2$ marks is three students and frequency of $1$ mark is two students. So, $2 + 3 + 3 = 8$ students obtained marks below $4$.

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

Ladoo, Barfi, Ladoo, jalebi, Ladoo, Rasgulla, Jalebi, Ladoo, Barfi, Rasgulla, Ladoo, Jalebi, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo, Rasgulla, Ladoo, Ladoo, Barfi, Rasgulla, Rasgulla, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo

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

Ans: Make a frequency table and denote the frequency of marks by vertical bars.

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

Ans: The highest frequency $11$ is from Ladoo, so Ladoo is most preferred. 

3. Catherine threw a dice $40$ times and noted the number appearing each time as shown below:

\begin{array}{*{20}{c}} 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&{}&{} \end{array}

Make a table and enter the data using tally marks. Find the number that appeared.

Ans: Make a frequency table and denote the frequency of marks by vertical bars.

(a) The minimum number of times.

Ans: The minimum frequency is $4$ of $4$. So, the minimum number of times$ = 4$. 

(b) The maximum number of times.

Ans: The maximum frequency is $11$ of $5$. So, the maximum number of times$ = 5$.

(c) Find those numbers that appear an equal number of times.

Ans: $1$ and $6$ have the same frequency.

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

Villages	No. 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?

Ans: Village D has a minimum number of tractors.

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

Ans: Village C has a maximum number of tractors.

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

Ans: Village C has $3$ more tractors then village B.

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

Ans: The total number of tractors in all villages is $6 + 5 + 8 + 3 + 6 = 28$. 

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?

Ans: The minimum numbers of girl students are in Class VIII.

(b) Is the number of girls in class VI less than the number of girls in class V?

Ans: No, the number of girls in class VI is more than the number of girls in class V since $16 > 10$.

(c) How many girls are there in class VII?

Ans: Each picture represents $4$ girls so the number of girls in class VII is $3 \times 4 = 12$students.

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?

Ans: Each picture represents $2$ bulbs so sale of bulbs on Friday is $2 \times 7 = 14$ bulbs.

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

Ans: Maximum numbers of bulbs were sold on Sunday.

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

Ans: On Wednesday and Saturday the same numbers of bulbs were sold.

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

Ans: On Wednesday and Saturday minimum numbers of bulbs were sold.

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

Ans: Total number of weeks sold in the whole week is $6 \times 2 + 8 \times 2 + 4 \times 2 + 5 \times 2 + 7 \times 2 + 4 \times 2 + 9 \times 2 = 12 + 16 + 8 + 10 + 14 + 8 + 18 = 86$. Each carton can hold $9$ so the number of cartons required $ = 86 \div 9$. Number of cartons required is $10$.  

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?

Ans: Martin sold the highest number of baskets.

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

Ans: Each picture represents $100$ baskets so the number of baskets sold by Anwar is $100 \times 7 = 700$ students.

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

Ans: Ranjit Singh, Anwar, and Martin are planning to buy a godown for the next season.

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

Opting for the NCERT solutions for Ex 9.1 Class 6 Maths is considered as the best option for the CBSE students when it comes to exam preparation. This chapter consists of many exercises. Out of which we have provided the Exercise 9.1 Class 6 Maths NCERT solutions on this page in PDF format. You can download this solution as per your convenience or you can study it directly from our website/ app online.

Vedantu in-house subject matter experts have solved the problems/ questions from the exercise with the utmost care and by following all the guidelines by CBSE. Class 6 students who are thorough with all the concepts from the Subject Maths textbook and quite well-versed with all the problems from the exercises given in it, then any student can easily score the highest possible marks in the final exam. With the help of this Class 6 Maths Chapter 9 Exercise 9.1 solutions, students can easily understand the pattern of questions that can be asked in the exam from this chapter and also learn the marks weightage of the chapter. So that they can prepare themselves accordingly for the final exam.

Besides these NCERT solutions for Class 6 Maths Chapter 9 Exercise 9.1, there are plenty of exercises in this chapter which contain innumerable questions as well. All these questions are solved/answered by our in-house subject experts as mentioned earlier. Hence all of these are bound to be of superior quality and anyone can refer to these during the time of exam preparation. In order to score the best possible marks in the class, it is really important to understand all the concepts of the textbooks and solve the problems from the exercises given next to it.

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