Here is an Intermediate chest workout that will greatly improve your muscular strength
Round 1/3 sets
*If necessary you may perform modified versions of these exercises (knee pushups etc.)
15 reps : Rest 45 secs
15 reps : Rest 45
15 reps : Rest 0 secs
35 secs : Rest 0 secs
12 reps : Rest 15 secs
12 reps : Rest 45 secs