Répondre :
bonsoir
6 min 14 s = 6 x 60 + 14 = 374 s
1 h 30 min = 1 x 3 600 + 30 x 60 = 5 400 s
2 h 10 min 15 s = 2 x 3 600 + 10 x 60 + 15 = 7 815 s
bonsoir
6 min 14 s = 6 x 60 + 14 = 374 s
1 h 30 min = 1 x 3 600 + 30 x 60 = 5 400 s
2 h 10 min 15 s = 2 x 3 600 + 10 x 60 + 15 = 7 815 s