Rs Aggarwal 2017 Solutions for Class 7 Math Chapter 22 Bar Graph are provided here with simple step-by-step explanations. These solutions for Bar Graph are extremely popular among Class 7 students for Math Bar Graph Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Rs Aggarwal 2017 Book of Class 7 Math Chapter 22 are provided here for you for free. You will also love the ad-free experience on Meritnationâ€™s Rs Aggarwal 2017 Solutions. All Rs Aggarwal 2017 Solutions for class Class 7 Math are prepared by experts and are 100% accurate.

#### Page No 275:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as* x*-axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the names of the subjects at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 10 marks

1 small division = 1 mark

Step 4.- Heights of the various bars are:

Hindi = 43 small divisions = 4 big divisions and 3 small divisions

English = 56 small divisions = 5 big divisions and 6 small divisions

Maths = 80 small divisions = 8 big divisions

Science = 65 small divisions = 6 big divisions and 5 small divisions

Social Science = 50 small divisions = 5 big divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

#### Page No 275:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the names of the sports at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 10 students

1 small division = 1 student

Step 4.- Heights of the various bars:

Cricket = 75 small divisions = 7 big divisions and 5 small divisions

Football = 35 small divisions = 3 big divisions and 5 small divisions

Tennis = 50 small divisions = 5 big divisions

Badminton = 25 small divisions = 2 big divisions and 5 small divisions

Swimming = 65 small divisions = 6 big divisions and 5 small divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

#### Page No 275:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y-*axis.

Step 2.- Along OX, write the years at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 100 students

1 small division = 10 student

Step 4.- Heights of the various bars:

2005−2006 = 80 small divisions = 8 big divisions

2006−2007 = 97.5 small divisions = 9 big divisions and 7.5 small divisions

2007−2008 = 110 small divisions = 11 big divisions

2008−2009 = 140 small divisions = 14 big divisions

2009−2010 = 162.5 small divisions = 16 big divisions and 2.5 small divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 275:

#### Answer:

We can draw the bar graph by following the given steps:-

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the years at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 2000 scooters

1 small division = 200 scooters

Step 4.- Heights of the various bars:

2004 = 55 small divisions = 5 big divisions and 5 small divisions

2005 = 70 small divisions = 7 big divisions

2006 = 62.5 small divisions = 6 big divisions 2.5 small divisions

2007 = 87.5 small divisions = 8 big divisions and 7.5 small divisions

2008 = 75 small divisions = 7 big divisions and 5 small divisions

2009 = 120 small divisions = 12 big divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 275:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the names of the countries at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 5 unit

2 small division = 1 unit

Step 4.- Heights of the various bars:

China = 84 small divisions = 8 big divisions and 4 small divisions

India = 70 small divisions = 7 big divisions

Germany = 28 small divisions = 2 big divisions and 8 small divisions

U.K. = 56 small divisions = 5 big divisions and 6 small divisions

Sweden = 42 small divisions = 4 big divisions and 2 small divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 275:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x-*axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the names of the states at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 100 lakhs

1 small division = 10 lakhs

Step 4.- Heights of the various bars:

Bihar = 82 small divisions = 8 big divisions and 2 small divisions

Jharkhand = 27 small divisions = 2 big divisions and 7 small divisions

Uttar Pradesh = 106 small divisions = 10 big divisions and 6 small divisions

Uttarakhand = 8 small divisions

Madhya Pradesh = 60 small divisions = 6 big divisions

Chhattisgarh = 21 small divisions = 2 big divisions and 1 small division

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the year at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 100 million

1 small division = 10 million

Step 4.- Heights of the various bars:

1951 = 36 small divisions = 3 big divisions and 6 small divisions

1961 = 43.2 small divisions = 4 big divisions and 3.2 small divisions

1971 = 54 small divisions = 5 big divisions and 4 small divisions

1981 = 68.4 small divisions = 6 big divisions and 8.4 small divisions

1991 = 85.2 small divisions = 8 big divisions and 5.2 small divisions

2001 = 102 small divisions = 10 big divisions and 2 small divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y-*axis.

Step 2.- Along OX, write the years at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 10 thousand crore rupees

1 small division = 1 thousand crore rupees

Step 4.- Heights of the various bars:

1998−99 = 70 small divisions = 7 big divisions

1999−2000 = 84 small divisions = 8 big divisions and 4 small divisions

2000−2001 = 98 small divisions = 9 big divisions and 8 small divisions

2001−2002 = 106 small divisions = 10 big divisions and 6 small divisions

2002−2003 = 120 small divisions = 12 big divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y-*axis.

Step 2.- Along OX, write the names of the cities at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 100 km

1 small division = 10 km

Step 4.- Heights of the various bars:

Kolkata = 134 small divisions = 13 big divisions and 4 small divisions

Mumbai = 110 small divisions = 11 big divisions

Chennai = 170 small divisions = 17 big divisions

Hyderabad = 122 small divisions = 12 big divisions and 2 small divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x-*axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the names of the countries at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 10 years

1 small division = 1 year

Step 4.- Heights of the various bars:

Japan = 76 small divisions = 7 big divisions and 6 small divisions

India = 57 small divisions = 5 big divisions and 7 small divisions

Britain = 70 small divisions = 7 big divisions

Ethiopia = 43 small divisions = 4 big divisions and 3 small divisions

Cambodia = 36 small divisions = 3 big divisions and 6 small divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the years at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 20 thousand crore rupees

1 small division = 2 thousand crore rupees

Step 4.- Heights of the various bars:

2001−02 = 74 small divisions = 7 big divisions and 4 small divisions

2002−03 = 88 small divisions = 8 big divisions and 8 small divisions

2003−04 = 102 small divisions = 10 big divisions and 2 small divisions

2004−05 = 116 small divisions = 11 big divisions and 6 small divisions

2005−06 = 90 small divisions = 9 big divisions

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2- Along OX, write the names of the months at the points taken at a uniform gap.

Step 3- Choose the scale:

1 big division = 5 cm

2 small divisions = 1 cm

Step 4- Heights of the various bars:

June = 50 small divisions = 5 big divisions

July = 60 small divisions = 6 big divisions

August = 80 small divisions = 8 big divisions

September = 40 small divisions = 4 big divisions

October = 20 small divisions = 2 big divisions

November = 10 small divisions = 1 big division

Step 5- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1.- On a graph paper, draw a horizontal line OX as *x-*axis and vertical line OY as *y*-axis.

Step 2.- Along OX, write the names of the brands at the points that are taken at a uniform gap.

Step 3.- Choose the scale:

1 big division = 5%

2 small divisions = 1%

Step 4.- Heights of the various bars:

A = 90 small divisions = 9 big divisions

B = 50 small divisions = 5 big divisions

C = 30 small divisions = 3 big divisions

D = 20 small divisions = 2 big divisions

Others = 10 small divisions = 1 big division

Step 5.- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1- On a graph paper, draw a horizontal line OX as *x-*axis and vertical line OY as *y*-axis.

Step 2- Along OX, write the names of the week at the points that are taken at a uniform gap.

Step 3- Choose the scale:

1 big division = Rs 500

1 small division = Rs 50

Step 4- Heights of the various bars:

First week = 170 small divisions = 17 big divisions

Second week = 175 small divisions = 17 big divisions and 5 small divisions

Third week = 181 small divisions = 18 big divisions and 1 small division

Fourth week = 185 small divisions = 18 big divisions and 5 small divisions

Step 5- Draw bars of equal width on the *x-*axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 276:

#### Answer:

We can draw the bar graph by following the given steps:

Step 1- On a graph paper, draw a horizontal line OX as *x*-axis and vertical line OY as *y*-axis.

Step 2- Along OX, write the names of the modes of transport at the points taken at a uniform gap.

Step 3- Choose the scale:

1 big division = 50 students

1 small division = 5 student

Step 4- Heights of the various bars:

School bus = 128 small divisions = 12 big divisions and 8 small divisions

Private bus = 72 small divisions = 7 big divisions and 2 small divisions

Bicycle = 98 small divisions = 9 big divisions and 8 small divisions

Rickshaw = 42 small divisions = 4 big divisions and 2 small divisions

By foot = 30 small divisions = 3 big divisions

Step 5- Draw the bars of equal width* *on* x*-axis. The difference between the two bars should also be the same.

We get the following bar graph:

#### Page No 277:

#### Answer:

(i) The bar graph shows the marks obtained by a student in an examination in various subjects.

(ii) The student is very good in mathematics.

(iii) The student is poor in Hindi.

(iv) Marks scored in English = 60

Marks scored in Hindi = 35

Marks scored in mathematics = 75

Marks scored in social science = 50

Marks scored in science = 60

∴ Average marks = $\frac{60+35+75+50+60}{5}=\frac{280}{5}=56$

#### Page No 277:

#### Answer:

(i) The bar graph shows the number of members in each of the 85 families.

(ii) 40 families have three members each.

(iii) Number of people living alone = 85 − (5+40+25+15)

= 85 − 85

= 0

(iv) The most common family is that with three members.

Each such family has three members .

#### Page No 277:

#### Answer:

(i) Mount Everest is the highest peak and it's height is 8800 m.

(ii) Height of the highest peak, Mount Everest = 8800 m

Height of the second highest peak, Kanchenjunga = 8200 m

Ratio = $\frac{8800}{8200}=\frac{44}{41}=44:41$

(iii) Heights of the peaks are 6000 m, 8000 m, 7500 m, 8200 m and 8800 m.

Heights in descending order:

8200 m, 8000 m, 7500 m, 6000 m

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