If benefits are $10,000 per year forever starting in year 1, and costs are $50,000 at time zero and $50,000 at the end of year 2, the B/C ratio at i = 10% per year is closest to:
(a) 0.93
(b) 1.10
(c) 1.24
(d) 1.73
Use PW values based on capitalized costs and the equation P = A/i
B/C = [10,000/0.10]/[50,000 + 50,000(P/F,10%,2)]
= 1.095
Answer is (b) 1.10
You might also like to view...
Some data for pure compounds W and Z is given in the table below.
Mixtures of W and Z form an azeotrope at the following conditions: P=0.46 bar, T=50 ?C, and xW=0.86. At these conditions, the liquid mixture has a molar volume of V = 80.2 cm3/mol.
A) Determine the activity coefficients ?W and ?Z for the azeotropic mixture at 50 ?C.
B) If you needed to model the azeotropic mixture using the van der Waals equation of state, what values of the parameters a and b would you use?
C) If you needed to model the azeotropic mixture at 50 ?C using the van Laar model, what values of the parameters L12 and L21 would you use?
D) If you needed to model the azeotropic mixture at 50 ?C using the Scatchard Hildebrand model, what value would you use for the solubility parameter of compound W (?W)?
E) You are asked to determine whether mixtures of these compounds form an azeotrope at 30 ?C, and if so, the P and xWof that azeotrope.You have only the information in the table and the known 50 ?C azeotrope described above. Your teammate suggests trying two models: Wilson and Scatchard-Hildebrand. Give your evaluation of the potential use of each of these two models for this problem: is it impossible to apply without more information, is it possible to apply but not likely to be very accurate, or is it a reasonable model to use? Explain.
El cobre es el conductor más utilizado porque:
a. es fácil de utilizar. b. ofrece baja resistencia y es fácil de utilizar. c. ofrece la menor resistencia. d. es liviano y económico.
Horticulturists are experts in _____
A) designing outdoor areas B) how to grow plants C) designing indoor areas D) pesticide use
When pollen from a different plant fertilizes the female gamete, it is called ______________________
Fill in the blank(s) with correct word