Maintenance cost for small bridge with an expected 50 year life are estimated to be $15,000 each year for the first 9 years, followed by a $20,000 expenditure in the year 15 and a $30,000 expenditure in the year 33. If interest rate is at 10% compounded monthly. What is the equivalent present value of the entire maintenance cost of that bridge? What is the equivalent uniform annual cost over the entire-50 year period?

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Maintenance cost for small bridge with an expected 50 year life are estimated to be $15,000 each year for the first 9 years, followed by a $20,000 expenditure in the year 15 and a $30,000 expenditure in the year 33. If interest rate is at 10% compounded monthly. What is the equivalent present value of the entire maintenance cost of that bridge?
What is the equivalent uniform annual cost over the entire-50 year period?

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