1. Read the graph and answer the related questions:

In which year was the number of labourers maximum?

2.
In which year was the number of labourers minimum?

3.
What was the difference of the number of labourers in the years 2002 and 2003?

4.
Find the rise in the number of labourers from 2001 to 2004.

5.
Find the sum of the number of labourers in the years 2004 and 2006.

6. Read the circle graph and answer the related questions:

There are in all 1000 students in a school. The number of students of class I are

7.
The number of students of class II is

8.
In which two classes is the number of students the same?

9.
The minimum number of students in any class is

10.
The sum of the number of students of class III and class IV is