To improve crack detection in military aircraft, the Air Force combined ultrasonic inspection proce­dures with laser heating to identify fatigue cracks. Early detection of cracks may reduce repair costs by as much as $200,000 per year. If the savings start at the end of year 1 and increase by 3% each year through year 5, calculate the present worth of these savings at an interest rate of 10% per year.

What will be an ideal response?


Pg = 200,000{1 – [(1 + 0.03)/(1 + 0.10)]?}/(0.10 – 0.03)
= $800,520

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