Let me start with an example. Lets say i am doing bench 3-6 reps for 5 sets and i end up doing 22 reps total. On another day i may do bench for 10-12 reps for 3 sets and end up doing 33 reps.
My question is there an better number number of reps for a particular muscle. Because I alternate high and low rep days. This ends up makeing me do very different rep counts.