Răspuns :
86:2=43(l al doilea robinet)
86+43=129(l pe minut)
129×5=645(l in cinci minute)
86+43=129(l pe minut)
129×5=645(l in cinci minute)
Cati litri de apa se afla in bazin dupa 5 minute ?
5x(86+86:2) = 5x(86+43) = 5x129 = 645 litri
5x(86+86:2) = 5x(86+43) = 5x129 = 645 litri