3000 detik+ 20 menit= jam

1 jam = 3600 detik
3000 detik = 3000/3600 jam = 5/6 jam

1 jam = 60 menit
20 menit = 20/60 jam = 1/3 jam

Maka 3000 detik + 20 menit = 5/6+1/3 = 5/6+2/6 = 7/6 jam = 1 1/6 jam

Semoga membantu:)
maaf jikalau salah