Răspuns :
30+10+10=50 calatori ( in total )
30+(10+10)=30+20=50 calatori in total
30+(10+10)=30+20=50 calatori in total
Răspuns:50
Explicație pas cu pas:1 )30+10=40 2)40 +10=50Modul II de rezolvare:30+(10+10)=30+20=50 O dupa-amiaza placuta!