Răspuns :
1. Cate kg s-au adus in a treia zi?
428+c=860
c=860-428
c=432
2. Cate kg s-au adus in prima zi?
a+543=860
a=860-543
a=317
3. Cate kg s-au adus in a doua zi?
317+b+432=860
749+b=860
b=860-749
b=111
VERIFICARE:
317+111+432=860?
860=860 A
428+c=860
c=860-428
c=432
2. Cate kg s-au adus in prima zi?
a+543=860
a=860-543
a=317
3. Cate kg s-au adus in a doua zi?
317+b+432=860
749+b=860
b=860-749
b=111
VERIFICARE:
317+111+432=860?
860=860 A
cate s au adus in a 3 zi 860-428=432 cate s au adus in 1 zi 860-543=317 cate in a 2 a 428-317=111