The number of students in a hostel speaking different language is given below. Present the data in pie chart.

Language	Hindi	English	Maths	Tamil	Bengali	Total
Number of students	40	12	9	7	4	72

3 From the histogram answer the following questions. i. What is the information is given on the two axes?ii. How many students have their height more than 165cm?iii. How many students are in the range of shortest height of the class?iv. How many students in the class? 4 Read the following bar graph and an i. What is the information is given by the graph?ii. What was the production of cement in the year 1980 - 81?iii. What is the minimum and maximum production of cement and corresponding years? 6 The following table gives the number of students in class VII in a school during academic years 2002 to 2003 to 2007 - 2008. Represent the below data by a bar graph.

Academic year	2002 - 2003	2003 - 2004	2004 - 2005	2005 - 2006	2006 - 2007	2007 - 2008
Number of students	50	75	120	130	150	200

7 The following table gives the number of vehicles passing through a busy crossing in Delhi in different time intervals on a particular day. Represent the below data by a bar graph.

Time interval	8-9hrs	9-10hrs	10-11hrs	11-12hrs	12-13hrs	13-14hrs	14-15hrs
Number of vehicles	300	400	350	250	200	150	100