Numbers of children in six different classes are given below. Represent the data on a bar graph. Class Fifth Sixth Seventh Eighth Ninth Tenth Number of Children 135 120 95 100 90 80 Find the ratio of students of class six to the students of class eight.

A bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bar graph for the given data is: The number of students in sixth class = 120 The number of students in eighth class = 100 Ratio of students = n u m b e r o f s t u d e n t s o f c l a s s si x n u m b e r o f s t u d e n t s o f c l a s s e i g h t = 120 100 = 6 5 Hence, the ratio of students of class six to the students of class eight = 6 : 5 .

The performance of a student in 1 s t Term and 2 n d Term is given. Draw a double bar graph choosing appropriate scale and answer the following: Subjects English Hindi Math Science Social science 1 s t term (max marks 100 ) 67 72 88 81 73 2 n d term (max marks 100 ) 70 65 95 85 75 In which subject is the improvement the least?

A bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. Take subjects on x - axis and marks on y - axis. Difference of marks of the student between the 2 n d and the 1 s t terms is: English: 70 – 67 = 3 , Hindi: 65 – 72 = - 7 , Math: 95 – 88 = 7 Science: 85 – 81 = 4 , Social science: 75 – 73 = 2 The subject in which the difference is minimum, will be the least improved subject. Here, we can see that the difference for Social science is minimum. Hence, the subject in which the child’s improvement is the least is Social science.

The performance of a student in 1 s t Term and 2 n d Term is given. Draw a double bar graph choosing appropriate scale and answer the following: Subjects English Hindi Math Science Social science 1 s t term (max marks 100 ) 67 72 88 81 73 2 n d term (max marks 100 ) 70 65 95 85 75 Has the performance gone down in any subject?

A bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. Take subjects on x - axis and marks on y - axis. Difference of marks of the student between the 2 n d and the 1 s t terms is: English: 70 – 67 = 3 , Hindi: 65 – 72 = - 7 , Math: 95 – 88 = 7 Science: 85 – 81 = 4 , Social science: 75 – 73 = 2 The subject for which the difference is negative will be down performed subject. Here, in Hindi the difference is negative. Hence, the performance has gone down in Hindi.

Consider this data collected from a survey of a colony. Favourite Sports Cricket Basketball Swimming Hockey Athletics Watching 1240 470 510 430 250 Participating 620 320 320 250 105 Which sport is the most popular?

A bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The game for which the bar length is highest will be the most popular game. Here, the length of the bars for Cricket is highest. Hence, Cricket is the most popular sport among the people in the colony.

Consider this data collected from a survey of a colony. Favorite Sports Cricket Basket Ball Swimming Hockey Athletics Watching 1240 470 510 430 250 Participating 620 320 320 250 105 Which is more preferred, watching or participating in sports?

A bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The white bar shows watching the sports and the blue bar shows participating in the sports and the highest length of the bar shows the most preference. The length of watching the sports bar(white bar) is highest. Hence, watching their favourite sports is most preferred in the colony.

From the data given below showing the minimum and the maximum temperature of various cities, plot a double bar graph and answer the following: Cities Ahmedabad Amritsar Bangalore Chennai Delhi Jaipur Jammu Mumbai Max Temp(°C) 38 37 28 36 38 39 41 32 Min Temp(°C) 29 26 21 27 28 29 26 27 (ii) Which is the hottest city and which is the coldest city?

A double bar graph is a graphical display of information using two bars besides each other at various heights Difference in the minimum and maximum temperature of the cities Ahmedabad: 29 ° C – 38 ° C = - 9 ° C ; Amritsar: 26 ° C – 37 ° C = - 11 ° C Bangalore: 21 ° C – 28 ° C = - 7 ° C ; Chennai: 27 ° C – 36 ° C = - 11 ° C Delhi: 28 ° C – 38 ° C = - 10 ° C ; Jaipur: 29 ° C – 39 ° C = - 10 ° C Jammu: 26 ° C – 41 ° C = - 15 ° C ; Mumbai: 27 ° C – 32 ° C = - 5 ° C The city for which the difference is minimum is coldest and for the difference is maximum is the hottest city. So, it is clear that Jammu is the hottest city and Bangalore is the coldest city.

From the data given below showing the minimum and the maximum temperature of various cities, plot a double bar graph and answer the following: Cities Ahmedabad Amritsar Bangalore Chennai Delhi Jaipur Jammu Mumbai Max Temp(°C) 38 37 28 36 38 39 41 32 Min Temp(°C) 29 26 21 27 28 29 26 27 Name two cities where maximum temperature of one was less than the minimum temperature of the other.

A double bar graph is a graphical display of information using two bars besides each other at various heights The difference in the minimum and maximum temperature of the cities Ahmedabad: 29 ° C – 38 ° C = - 9 ° C ; Amritsar: 26 ° C – 37 ° C = - 11 ° C Bangalore: 21 ° C – 28 ° C = - 7 ° C ; Chennai: 27 ° C – 36 ° C = - 11 ° C Delhi: 28 ° C – 38 ° C = - 10 ° C ; Jaipur: 29 ° C – 39 ° C = - 10 ° C Jammu: 26 ° C – 41 ° C = - 15 ° C ; Mumbai: 27 ° C – 32 ° C = - 5 ° C So, it is clear that Ahmedabad and Jaipur are two cities with a minimum temperature of 29 ° C . The maximum temperature of Bangalore is 28 ° C which is even less than the minimum temperature of Ahmedabad and Jaipur.

From the data given below showing the minimum and the maximum temperature of various cities, plot a double bar graph and answer the following: Cities Ahmedabad Amritsar Bangalore Chennai Delhi Jaipur Jammu Mumbai Max Temp(°C) 38 37 28 36 38 39 41 32 Min Temp(°C) 29 26 21 27 28 29 26 27 Name the city which has the least difference between its minimum and the maximum temperature.

A double bar graph is a graphical display of information using two bars besides each other at various heights Difference in the minimum and maximum temperature of the cities Ahmedabad: 29 ° C – 38 ° C = - 9 ° C ; Amritsar: 26 ° C – 37 ° C = - 11 ° C Bangalore: 21 ° C – 28 ° C = - 7 ° C ; Chennai: 27 ° C – 36 ° C = - 11 ° C Delhi: 28 ° C – 38 ° C = - 10 ° C ; Jaipur: 29 ° C – 39 ° C = - 10 ° C Jammu: 26 ° C – 41 ° C = - 15 ° C ; Mumbai: 27 ° C – 32 ° C = - 5 ° C So, its clear that, Mumbai has the least difference ( 27 ° C – 32 ° C = - 5 ° C ) between its minimum and the maximum temperature.

Manipur Board Solutions for Chapter: Data Handling, Exercise 3: EXERCISE 3.3

Author:Manipur Board

Manipur Board Mathematics Solutions for Exercise - Manipur Board Solutions for Chapter: Data Handling, Exercise 3: EXERCISE 3.3

Attempt the practice questions on Chapter 3: Data Handling, Exercise 3: EXERCISE 3.3 with hints and solutions to strengthen your understanding. Mathematics class 7 solutions are prepared by Experienced Embibe Experts.

Questions from Manipur Board Solutions for Chapter: Data Handling, Exercise 3: EXERCISE 3.3 with Hints & Solutions

MEDIUM

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 3

Numbers of children in six different classes are given below. Represent the data on a bar graph.

Class	Fifth	Sixth	Seventh	Eighth	Ninth	Tenth
Number of Children	$135$	$120$	$95$	$100$	$90$	$80$

Find the ratio of students of class six to the students of class eight.

MEDIUM

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 4

The performance of a student in $1 s t$ Term and $2 n d$ Term is given. Draw a double bar graph choosing appropriate scale and answer the following:

Subjects	English	Hindi	Math	Science	Social science
$1 s t$ term (max marks $100$ )	$67$	$72$	$88$	$81$	$73$
$2 n d$ term (max marks $100$ )	$70$	$65$	$95$	$85$	$75$

In which subject is the improvement the least?

HARD

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 4

The performance of a student in $1 s t$ Term and $2 n d$ Term is given. Draw a double bar graph choosing appropriate scale and answer the following:

Subjects	English	Hindi	Math	Science	Social science
$1 s t$ term (max marks $100$ )	$67$	$72$	$88$	$81$	$73$
$2 n d$ term (max marks $100$ )	$70$	$65$	$95$	$85$	$75$

Has the performance gone down in any subject?

HARD

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 5

Consider this data collected from a survey of a colony.

Favourite Sports	Cricket	Basketball	Swimming	Hockey	Athletics
Watching	$1240$	$470$	$510$	$430$	$250$
Participating	$620$	$320$	$320$	$250$	$105$

Which sport is the most popular?

HARD

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 5

Consider this data collected from a survey of a colony.

Favorite Sports	Cricket	Basket Ball	Swimming	Hockey	Athletics
Watching	$1240$	$470$	$510$	$430$	$250$
Participating	$620$	$320$	$320$	$250$	$105$

Which is more preferred, watching or participating in sports?

HARD

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 6

From the data given below showing the minimum and the maximum temperature of various cities, plot a double bar graph and answer the following:

Cities	Ahmedabad	Amritsar	Bangalore	Chennai	Delhi	Jaipur	Jammu	Mumbai
Max Temp(°C)	$38$	$37$	$28$	$36$	$38$	$39$	$41$	$32$
Min Temp(°C)	$29$	$26$	$21$	$27$	$28$	$29$	$26$	$27$

(ii) Which is the hottest city and which is the coldest city?

MEDIUM

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 6

From the data given below showing the minimum and the maximum temperature of various cities, plot a double bar graph and answer the following:

Cities	Ahmedabad	Amritsar	Bangalore	Chennai	Delhi	Jaipur	Jammu	Mumbai
Max Temp(°C)	$38$	$37$	$28$	$36$	$38$	$39$	$41$	$32$
Min Temp(°C)	$29$	$26$	$21$	$27$	$28$	$29$	$26$	$27$

Name two cities where maximum temperature of one was less than the minimum temperature of the other.

MEDIUM

7th Manipur Board

IMPORTANT

Mathematics class 7>Chapter 3 - Data Handling>EXERCISE 3.3>Q 6

From the data given below showing the minimum and the maximum temperature of various cities, plot a double bar graph and answer the following:

Cities	Ahmedabad	Amritsar	Bangalore	Chennai	Delhi	Jaipur	Jammu	Mumbai
Max Temp(°C)	$38$	$37$	$28$	$36$	$38$	$39$	$41$	$32$
Min Temp(°C)	$29$	$26$	$21$	$27$	$28$	$29$	$26$	$27$

Name the city which has the least difference between its minimum and the maximum temperature.

Manipur Board Solutions for Chapter: Data Handling, Exercise 3: EXERCISE 3.3

Manipur Board Mathematics Solutions for Exercise - Manipur Board Solutions for Chapter: Data Handling, Exercise 3: EXERCISE 3.3

Questions from Manipur Board Solutions for Chapter: Data Handling, Exercise 3: EXERCISE 3.3 with Hints & Solutions

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