The following pie charts show the data of the number of appeared and passed students of class 12 in sections A,B,C,D and E.

Find the difference between the number of students who appeared for the exam in sections A and B.

Total appeared students = 1800 

in the pie chart,

Angle measure for appeared student in section A for exam = 42⁰​

Angle measure for appeared student in section B for exam = 50⁰ 

Difference of number of students in A and B;

= $$\frac{\text{ difference of angle}}{360^0}\times 1800$$ 

Solution: ​

Difference between angle measure of A and B = 50 - 42 = 8 

thus, the difference of students appeared in A and B section is 40.