Răspuns :
1)Cat litri de apa curge prin al doilea robinet?
198-90=108 litri
(198+108)x3=306x3=918 litri de apa sunt in bazin dupa 3 min.
2) 198x3+(198-90)x3=594+108x3=594+324=918 litri
198-90=108 litri
(198+108)x3=306x3=918 litri de apa sunt in bazin dupa 3 min.
2) 198x3+(198-90)x3=594+108x3=594+324=918 litri
(198-90)+198=108+198
=306. 306×3=918
R:918litri
198×3+(298-90)×3=594+108×3
=594+324
=918litri
R:918litri de apa sunt in bazin dupa 3minute