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Triks
a fost răspuns

Cate sec au 3 ore si 15 min

Răspuns :

1h=60 min
1 min=60 sec.
60•60=3600 sec (1 h)
3600•3=10800
15 min•60=900
10800+900=11700 sec
1min=60sec
1h=60m*60s=3600s

3x3600+15x60=10800+900= 11700 sec