ow long will it take to complete the project described below? A flow diagram in two steps is shown. The first step starts with "Rewiring" that takes 7 days leading to "Install" that takes 6 days and finishes with "Training clerks" that takes 4 days. The second step starts with "Order" that takes 10 days and finishes with "Training Supervisor" that takes 2 days. The "Order" in the second step is also linked to "Install" in the first step. 20 days 12 days 17 days 29 days