1 jam = 1 jam
1 jam = 60 menit
1 jam = 3.600 detik
2 jam = 2 x 1 = 2 jam
2 jam = 2 x 60 = 180 menit
2 jam = 2 x 3.600 = 7.200 detik
120 menit = 120 x 1/60 = 120/60 = 2 jam
120 menit = 120 x 1 = 120 menit
120 menit = 120 x 60 = 7.200 detik
7.200 detik = 7.200 x 1/3.600 = 7.200/3.600 = 2 jam
7.200 detik = 7.200 x 1/60 = 7.200/60 = 120 menit
7.200 detik = 7.200 x 1 = 7.200 detik
Sumber :
https://idschool.net/sd/macam-macam-konversi-satuan/