Incorrect answer in a practice exam

Practice exam 2 of the section : Modeling and solving time value money problems .

I believe there may be an issue in the answer provided for Alex Davidson’s case. Specifically, in Investment A, the cash flow sum for period 1 appears to be listed as 78,000 instead of 178,000. This discrepancy affects the present value calculation.

I would greatly appreciate it if you could confirm whether this is indeed an error or if I may have misunderstood the figures. 
Thank you for your time and assistance.