The U.S. Bureau of Reclamation is considering five national park projects shown below, all of which can be considered to last indefinitely. At a MARR of 7.5% per year, determine which should be selected, if they are

(a) Independent

(b) Mutuallyexclusive.

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First Cost, $1000 Annual Income, $1000 Rate of Return, % Project ID -20,000 -10,000 -15,000 -70,000 -50,000 +2000 +1300 +1000 +4000 +2600 10.0 13.0 6.6 5.7 5.2