|--------|---------|-------|-------|------| R1
----
reclame
|----------|-----------|---------| R2
----------------------
muzica
|---------|
1012
1012 × 2 = 2024 secunde (muzica)
1012 × 3 = 3036 secunde (R2)
3036:4=759 secunde (reclamele)
759 × 5 = 3795 total
3795:60=63.25 minute