A department store issues its own credit card, with an interest rate of 2% per month. Explain why this is not the same as an annual rate of 24%. What is the effective annual rate?
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Textbook Solutions for Applied Calculus
Question
Between December 1988 and December 1989, Brazils inflation rate was 1290% a year. (This means that between 1988 and 1989, prices increased by a factor of 1 + 12.90 = 13.90.) (a) What would an article which cost 1000 cruzados (the Brazilian currency unit) in 1988 cost in 1989? (b) What was Brazils monthly inflation rate during this period?
Solution
The first step in solving Appendix B problem number 13 trying to solve the problem we have to refer to the textbook question: Between December 1988 and December 1989, Brazils inflation rate was 1290% a year. (This means that between 1988 and 1989, prices increased by a factor of 1 + 12.90 = 13.90.) (a) What would an article which cost 1000 cruzados (the Brazilian currency unit) in 1988 cost in 1989? (b) What was Brazils monthly inflation rate during this period?
From the textbook chapter Problems for Appendix B you will find a few key concepts needed to solve this.
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