What is the simple payback period for the wingtips? What is the discounted payback period?

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
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The upturned wingtips on jet aircraft reduce drag and increase lift. Wingtips save on
fuel consumption, averaging 4% of the total fuel bill. A single set of wingtips can
annually save 45,000 gallons of jet fuel costing $3 per gallon. (Fuel is the biggest
operating expense of an airline company.) Furthermore, 100 metric tons of carbon
dioxide emissions each year will be avoided, and maintenance expenses will be
reduced. Wingtips cost $1 million to install. The airline company's MARR is 20%.
Considering only the fuel savings;
a. What is the simple payback period for the wingtips?
b. What is the discounted payback period?
Transcribed Image Text:The upturned wingtips on jet aircraft reduce drag and increase lift. Wingtips save on fuel consumption, averaging 4% of the total fuel bill. A single set of wingtips can annually save 45,000 gallons of jet fuel costing $3 per gallon. (Fuel is the biggest operating expense of an airline company.) Furthermore, 100 metric tons of carbon dioxide emissions each year will be avoided, and maintenance expenses will be reduced. Wingtips cost $1 million to install. The airline company's MARR is 20%. Considering only the fuel savings; a. What is the simple payback period for the wingtips? b. What is the discounted payback period?
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