On an environment day, students in a school planted 120 trees under plantation project. The information regarding the projects is shown in the following table. Show it by a pie diagram.

The following table shows causes of noise pollution. Show it by a pie diagram .

In a tree plantation programme, the number of trees planted by students of different classes is given in the following table. Draw a pie diagram showing the information.

The time required for students to do a science experiment and the number of students is shown is the following grouped frequency distribution table. Show the information by a histogram and also by a frequency polygon.

Time alloted for the preparation of an examination by some students is shown in the the table. Draw a histogram to show the information.

The following table shows the percentages of demands for different fruits registered with a fruit vendor. Show the information by a pie diagram.

The following pie diagram represents the number of valid votes obtained by four students who contested for school captain . The total of valid votes polled was 720 . Answer the following questions. What is the minimum no. of votes ? Who got it ?

The following pie diagram represents the number of valid votes obtained by four students who contested for school captain . The total of valid votes polled was 720 . Answer the following questions. By how many votes did the winner defeat the nearest contestant ?

The following pie diagram represents the number of valid votes obtained by four students who contested for school captain . The total of valid votes polled was 720 . Answer the following questions. Who has won the election ?

The marks obtained by a student in different subjects are shown. Draw a pie diagram showing the information.