Răspunsuri

2014-10-25T12:35:03+03:00


un grad = 60 minute

un minut =  60 secunde

a) 4·60·60+10·60 = 15000 secunde

b) 7·60+11+120:60 = 433 minute

c)1·60·60+7·60+44 = 4064 secunde