Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin

Exercise 24

If two mutually exclusive alternatives have B/C ratios of 1.4 and 1.5 for the lower- and higher-cost alternatives, respectively, the following is correct:
A) The B/C ratio on the increment between them is equal to 1.5.
B) The B/C ratio on the increment between them is between 1.4 and 1.5.
C) The B/C ratio on the increment between them is less than 1.5.
D) The higher-cost alternative is the better one economically.