Răspunsuri

2014-04-15T11:43:35+03:00
1. Cati kilometri a asfaltat a treia echipa?
409+c=725
c=725-409
c=316

2. Cati km a asfaltat prima echipa?
a+504=725
a=725-504
a=221

3. Cati km a asfaltat a doua echipa?
221+b+316=725
b=725-221-316
b=188
2014-04-15T11:45:19+03:00
A+b+c=725
a+b=409    c=725-409=316
b+c=504
b+316=504
b=504-316
b=188
a+188=409
a=409-188
a=221
A+B+C=725
A+B=409 409+C=725 C=725-409 C=316 ; B+C=504 ; B+316=504 ; B=504-316; B=188 ; A+B=409; A+188=409 ; A=409-188 ;A=221 V:A +B+C=725 ; 221+188+316=725