Explicație pas cu pas:
A) Ialomița 6×10000+2×100000=
60000+200000=260000
Prahova 7×100000+5×10000
700000+50000=750000
Brașov 6×100000+2×10000
600000+20000=620000
B) 360000=====>400000 Ialomița
750000====>800000 Prahova
620000=====>600000 Brașov
C)1=Prahova 2= Brașov 3=Ialomița