Allow yourself one minute of rest between sets of an exercise and five minutes of rest between different exercises. (fitnessandpower.com)
To build strength you need to keep the repetitions of each set to between 6 — 10 and have one minutes rest between each set of each exercise. (unique-bodyweight-exercises.com)
Say you've been doing 10 sets of 10 push - ups, with a 45 - second rest between each set. (inc.com)