Question

1 cutie-?litri
10 cutii-20litri
? cutii-800 litri ajutatima

Answer 1

10 cutii de lapte au 20 de litri.
10 cutii.........20 litri |:10
1 cutie..........2 litri
x cutii...........800 litri
x=800:2
x=400 cutii

Answer 2

Cite litri are 1 cutie?
20÷10=2 litri are 1 cutie.
Cite cutii are 800 litri?
800÷2=400 de cutii au 800 de litri.