An international textile company’s North America Division must decide which type of fabric cutting machines it will use—straight knife or round knife. The estimates are summarized below. Compare them on the basis of annual worth values at i = 10% per year using (a) factors, and (b) single-cell spreadsheet functions.





What will be an ideal response?


(a) Factors
AW Round = -250,000(A/P,10%,6) – 31,000 + 40,000(A/F,10%,6)
= -250,000(0.22961) – 31,000 + 40,000(0.12961)
= $-83,218
AW Straight = -170,000(A/P,10%,4) – 35,000 – 26,000(P/F,10%,2)(A/P,10%,4)
+ 10,000(A/F,10%,4)
= -170,000(0.31547) – 35,000 – 26,000(0.8264)(0.31547)
+ 10,000(0.21547)
= $-93,254
Select Round Knife
(b) Round knife: = - PMT(10%,6,-250000,40000) – 31000 displays $-83,218
Straight knife: = - PMT(10%,4,-170000,10000) - 35000 - PMT(10%,4,-PV(10%,2,,

-26000)) displays $-93,254

Select Round knife

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