Stan bought a car three years ago for $20 000. Recently he got a promotion and is deciding whether to keep his old car or to buy a new one. His dealer told him that the current market price of his old car is $15 000. The car maintenance costs are $1 000 now, and they are going to increase each year by at least $500. Stan compares his old car with a new one that, he calculates, would have an equivalent annual cost of $4 100. What is Stan's optimal decision if his current interest rate is 7%?

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The Answer of Stan bought a car three years ago for $20 000. Recently he got a promotion and is deciding whether to keep his old car or to buy a new one. His dealer told him that the current market price of his old car is $15 000. The car maintenance costs are $1 000 now, and they are going to increase each year by at least $500. Stan compares his old car with a new one that, he calculates, would have an equivalent annual cost of $4 100. What is Stan's optimal decision if his current interest rate is 7%?

Stan Bought a Car Three Years Ago for $20 000