SANDU,VICTORITA SI ANDRIES COLECTIONEAZA TIMBRE. VICTORITA SI ANDRIES AU IN TOTAL 451 DE TIMBRE IAR VICTORITA SI SANDU 364 DE TIMBRE. CATE TIMBRE ARE FIECARE DACA CEI TREI PRIETENI AU IN TOTAL 600 DE TIMBRE?

1
cate tibre are sandu 600-451=149,cate are victorita 600-364=236,cate are andries 451-236=215

Răspunsuri

2014-03-12T20:31:42+02:00
A-Sandu
b-Victorita
c-Andries
a+b=364⇔b+c=451⇔a+2b+c=451⇔364+451=b+600 de aici faci tu ca nu mai am timp.