A material supplier won a 5​-year contract to supply a construction company with all their building materials needs. The contract is expected to generate a​ first-year profit of $12,000. This annual profit is expected to increase by ​$6,000 each successive year for the rest of the contract period. The profits will be invested in an account earning an interest rate of 7​%per year. ​(a) Assuming that the profits are deposited in the account at the end of each​ year, how much money will be in the account immediately after the last deposit is​ made? ​(b) What is the equivalent uniform annual​ deposit?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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A material supplier won a 5​-year contract to supply a construction company with all their building materials needs. The contract is expected to generate a​ first-year profit of $12,000. This annual profit is expected to increase by ​$6,000 each successive year for the rest of the contract period. The profits will be invested in an account earning an interest rate of 7​%per year.
​(a) Assuming that the profits are deposited in the account at the end of each​ year, how much money will be in the account immediately after the last deposit is​ made?
​(b) What is the equivalent uniform annual​ deposit?
Expert Solution
Step 1: Determine the given information:

First-year profit is equal to $12,000

The annual profit is expected to increase by $6000 each successive year. 

The rate of interest is 7%.

The contract is for 5 years. 

This is an example of uniform gradient series cash flow in which the first year-end cash flow is $12000 and the annual increment in cash flow is $6000.

A1=12,000

G=6000

i=0.07

n= 5 years.

The equivalent amount at the end of the last deposit is known as the future value of this uniform gradient series. 




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