The residents of Vegopia spend all of their income on cauliflower, broccoli, and carrots. In 2010, they buy 100 heads of cauliflower for $200, 50 bunches of broccoli for $75, and 500 carrots for $50. In 2011, they buy 75 heads of cauliflower for $225, 80 bunches of broccoli for $120, and 500 carrots for $100.
a. Calculate the price of each vegetable in each year.
b. Using 2010 as the base year, calculate the CPI for each year.
c. What is the inflation rate in 2011?