Răspunsuri

2014-11-03T18:57:23+02:00
40 min si 25 secunde=2425 secunde
1h  20 min=4800 secunde
3 h 10 min 25 sec =11425 secunde
1 h = 3600 secunde 
20 min=1200 secunde
2014-11-03T19:13:00+02:00
40min si 25 sec =40*60+25=2400+25=2425 sec
1h20min=60min si 20min =60*60+20*60=3600+1200=4800 sec
3h10min 25s=180 min 10min 25s=180*60+10*60+25=10800+600+25=11425