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Calculeaza in secunde: 2ore + 10min +30s
VA ROG REPEDE!


Răspuns :

2ORE=(60x2)x60=7200 secunde
10min=10x60=600 secunde
7200+600+30=7830 secunde
2 ore=2x60x60=7200 s
10 minute=10x60=600 s

7200s+600s+30s=7830 s