Following Pie chart presents monthly expenditure by Sushma and Preeti in different heads. Sushma and Preeti make equal expenditure every month.


What is the different between the central angle corresponding to the expenditure incurred on Health by Sushma and Preeti?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 18°.
Total expenditure each of Sushma and Preeti = 1800 + 5000 + 6000 + 7200 + 2500 + 7500 = 30000
Expenditure incurred on health by Sushma = 7500
Angle of health expenditure = (7500/30000) × 360 = 90°
Expenditure incurred on health by Preeti = (20/100) × 30000 = 6000
Angle of health expenditure = (6000/30000) × 360 = 72°
Difference = 90° - 72° = 18°