For the development of basic infrastructure in a district, a project of Rs 108 crore approved by Development Bank is as follows:

Draw a pie chart for this data.

The following histogram shows the frequency distribution of teaching experiences of 30 teachers in various schools:

(a) What is the class width?

(b) How many teachers are having the maximum teaching experience and how many have the least teaching experience?

(c) How many teachers have teaching experience of 10 to 20 years?

In a district, the number of branches of different banks is given below:

Draw a pie chart for this data.

In the time table of a school, periods allotted per week to different teaching subjects are given below:

Draw a pie chart for this data.

A survey was carried out to find the favourite beverage preferred by a certain group of young people. The following pie chart shows the findings of this survey.

From this pie chart answer the following:

(i) Which type of beverage is liked by the maximum number of people.

(ii) If 45 people like tea, how many people were surveyed?