Answer :
If an interest rate of 5% is used, then investment A is superior.
Define interest rate.
A rate of interest tells you how expensive borrowing is or how advantageous saving is. Therefore, if you are a borrower, the interest rate is the cost of borrowing money and is stated as a percentage of the total loan amount.
The real interest rate accounts for inflation by calculating the rise in the loan's real value plus interest. The repayment of principal and interest is computed in real terms by comparing the amount to its purchasing power at the time it was borrowed, lent, deposited, or invested.
To find the NPV of two investments
NPV (A) = -10000 + 11500 (P/F, 5%, 2)
= -10000 + 11500*0.90703
= 431
NPV (B) = -8000 + 4500(P/A, 5%, 2)
= -8000 + 4500*1.8594
= 367
Since NPV (A) > NPV (B)
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