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Helpp ..va rog urgentt

Helpp Va Rog Urgentt class=

Răspuns :

a)tb_b=t2-t1=10:20-8:10=2:10 
b)tb_p=t2-t1=12:10-11:00=1:10
c)stationare buzau=11:00-10:20=0:40
t=tb_b+tsationare+tb-p=2:10+0:40+1:10=4:00