Question

Un agricultor a vandut 600kg de cartofi in trei zile.In primele doua zile a vandut 400 kg de cartofi iar in a doua si a trei zi a vandut 446kg.Cate kg de cartofi a vandut in fiecare dintre cele trei zile?

Answer 1

Notam cele trei zile cu : a , b , c.

a + b + c = 600
a + b = 400
b + c = 446
--------------------
c = 600 - 400
c = 200
b + 200 = 446
b = 446 - 200
b = 246
a + 246 = 400
a = 400 - 246
a = 154
    Verificare:

154 + 246 + 200 = 600
 400 + 200 = 600 .

Answer 2

I+II+III=600kg
I+II=400kg
II+III=446kg
1.Cate kg a vandut in a treia zi?
600-400=200kg
2.Dar in prima zi?
600-446=154kg
3.Dar in a doua zi?
400-154=246kg
VERIFICARE 200+154+246=600kg