Textbook Errata

At present I am using the 2009 version of Alexander and Sadiku's Fundamentals of Electric Circuits, fourth edition. Practice problem 7.3 was driving me nuts: I worked it a few times yet never got the correct edition. Frustrated, I resorted to DuckDuckGo and found an errata file for the book. It turns out that all the resistors in my book's problem were wrong, as were both answers; the other answer has the wrong units as well. No wonder I was having trouble.