a)10×20=200(scaune)-sunt in total
20scaune×4randuri=80(scaune)-sunt libere
200-80=120(scaune)-sunt ocupate
b)20×30=600(locuri)-sunt in total
600-550=50(locuri)-sunt libere
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a)10×20=200(scaune)-sunt in total
20scaune×4randuri=80(scaune)-sunt libere
200-80=120(scaune)-sunt ocupate
b)20×30=600(locuri)-sunt in total
600-550=50(locuri)-sunt libere