What I mean by this is that now we're going to do 4 sets per exercise on training Days 1 and 3 and do something a little different on Day 2. (weightrainer.net)
2 - 3 sets of 8 - 12 reps per exercise with medium rest (2 - 3 minutes) works well for me. (neatstrength.com)
When I chose my workout program, I carefully looked at the number of repetitions per exercise and the types of muscles each exercise will hit. (pathtofatloss.com)