Monthly expenditure of a family on different heads is shown in the following pie chart.  The family earns Rs. 2,16,000 every month. What is the difference in amount spent on rent and savings?

24000 12000 18000 20000

12000

Money spent on rent = 60° Money spent on savings = 40° Difference = 20°                  = \(\frac{20°}{360°}\) × 216000 = 12000