A consulting engineer is currently evaluating four different projects for the Department of Housing and Urban Development. The future worth of costs, benefits, disbenefits, and cost savings is shown. The interest rate is 10% per year, compounded continuously. Determine which of the projects, if any, should be selected, if the projects are

(a) Independent and

(b) Mutuallyexclusive.

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Project ID Good Better Best Best of All FW of first costs, ,000 8,000 20,000 14,000 FW of benefits, 5,000 11,000 25,000 42,000 FW of disbenefits, 6,000 1,000 20,000 32,000 FW of cost savings, $ 5002,000 16,000 3,000