Eastland College is concerned about the rising price of textbooks that students must purchase. To...

Question

Eastland College is concerned about the rising price of textbooks that students must purchase. To better identify the increase in the price of textbooks, the dean asks you, the Economics Department’s star student, to create an index of textbook prices. The average student purchases three English, two math, and four economics textbooks per year. The prices of these books are given in the accompanying table.

a. What is the percent change in the price of an English textbook from 2012 to 2014?

b. What is the percent change in the price of a math textbook from 2012 to 2014?

c. What is the percent change in the price of an economics textbook from 2012 to 2014?

d. Using 2013 as a base year, create a price index for these books for all years. e. What is the percent change in the price index from 2012 to 2014?

Robert · Accepted Answer

Rising price of textbooks that students must purchase:
a. Expenditure on 3 English textbook in 2012 = $100x3 = $300 
Expenditure on 3 English textbook in 2014 = $114x3 = $342 
Percentage change in price of English textbook from 2012 to 2914 = (342-300)/300 x 100 
Percentage change in price of English textbook = 14%
b. Expenditure on 2 math textbook in 2012 = $110x2 = $220 
Expenditure on 2 math textbook in 2014 = $148x2 = $296 
Percentage change in price between 2012 and 2014 = ($296-220)/220 x 100 
Percentage change in price of math textbook from 2012 to 2014 = 34.5%
c.

Eastland College is concerned about the rising price of textbooks that students must purchase. To better identify the increase in the price of textbooks, the dean asks you, the Economics Department’s...

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