Maintenance costs for a regenerative thermal
Chapter 2, Problem 2.79(choose chapter or problem)
Maintenance costs for a regenerative thermal oxidizerincreased according to an arithmetic gradientfor 5 years. The cost in year 1 was $7000. If theinterest rate is 10% per year and the present worthof the costs for a 5-year period was $28,800, theamount of the yearly increase, G, was closest to:(a) $1670 (b) $945(c) $620 (d) $330
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