You don't need anymore than what was listed in the problem to solve.
The first step in linear programming is to create the equations that represent the given constraints(# of washers and driers that can be made in a day, time to make washer or dryer, time to inspect washer and dryer, etc.) and objective (maximize profit).
This site has some sample formulations that could be helpful:
http://www.sonoma.edu/users/w/wilsonst/Courses/Math_131/lp/Farm.html