In December 2020, a pound of lemons cost $1.52, while a pound of bananas cost $1.16. Two years earlier, the price of lemons was $1.31 a pound and that of bananas was $1.02. What was the annual compound rate of growth in the price of lemons? What was the annual compound rate of growth in the price of bananas? If the same rates of growth persist in the future, what will be the price of lemons in 2030? What about the price of bananas?

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
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In December 2020, a pound of lemons cost $1.52, while a pound of bananas cost $1.16. Two years earlier, the price of lemons was $1.31 a pound and that of bananas was $1.02.

  1. What was the annual compound rate of growth in the price of lemons?
  2. What was the annual compound rate of growth in the price of bananas?
  3. If the same rates of growth persist in the future, what will be the price of lemons in 2030?
  4. What about the price of bananas?

 

An engineer in 1950 was earning $6,400 a year. In 2020, she earned $84,000 a year. However, on average, prices in 2020 were higher than in 1950. What was her real income in 2020 in terms of constant 1950 dollars? 

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