Answer:
Alternative 1 with B/C ratio of 1.21
Step-by-step explanation:
Benefit to cost analysis can be computed as follows to determine which project is worthwhile.
Alternative 1
B/C ratio = 1,020,000 / 840,900 = 1.21
Alternative 2
B/C ratio = 1,990,000 / 1,780,000 = 1.12
Both of the projects yield a positive ratio which is grater than 1, however the B/C ratio of alternative 1 is healthier and given the fact that it requires less initial outlay; this might be a good choice for the agency to adopt. The final decision would be taken by considering more than just these factors.
Hope that helps.