The marks out of 100 obtained by Kunal and Soni in the Half Yearly Examination are given below:

A. Draw a double bar graph by choosing appropriate scale.

B. Calculate the total percentage of marks obtained by Soni.

C. Calculate the total percentage of marks obtained by Kunal.

D. Compare the percentages of marks obtained by Kunal and Soni.

E. In how many subjects did Soni get more marks than Kunal? Which are those subjects?

F. Who got more marks in S. Science and what was the difference of marks?

G. In which subject the difference of marks was maximum and by how much?

Observe the given data:

A. Draw a bar graph to represent the above given information.

B. On which day of the week was the sales maximum?

C. Find the total sales during the week.

D. Find the ratio of the minimum sale to the maximum sale.

E. Calculate the average sale during the week.

F. On how many days of the week was the sale above the average sales?

Below is a list of 10 tallest buildings in India. This list ranks buildings in India that stand at least 150m (492 ft.) tall, based on standard height measurement. This includes spires and architectural details but does not include antenna marks. Following data is given as per the available information till 2009. Since new buildings are always under construction, go on-line to check new taller buildings.

Use the information given in the table about sky scrapers to answer the following questions:

A. Find the height of each storey of the three tallest buildings and write them in the following table:

B. The average height of one storey for the buildings given in (a) is ___________.

C. Which city in this list has the largest percentage of skyscrapers? What is the percentage?

D. What is the range of data?

E. Find the median of the data.

F. Draw a bar graph for given data.

The students of Class VII have to choose one club from Music, Dance, Yoga, Dramatics, Fine arts and Electronics clubs. The data given below shows the choices made by girls and boys of the class. Study the table and answer the questions that follow:

A. Draw a double bar graph using appropriate scale to depict the above data.

B. How many students are there in Class VII?

C. Which is the most preferred club by boys?

D. Which is the least preferred club by girls?

E. For which club the difference between boys and girls is the least?

F. For which club is the difference between boys and girls the maximum?

The data given below shows the production of motor bikes in a factory for some months of two consecutive years.

Study the table given above and answer the following questions:

A. Draw a double bar graph using appropriate scale to depict the above information and compare them.

B. In which year was the total output the maximum?

C. Find the mean production for the year 2007.

D. For which month was the difference between the production for the two years the maximum?

E. In which month for the year 2008, the production was the maximum?

F. In which month for the year 2007, the production was the least?