Question

Coronita !!! De la un depozit se incarca marfa in trei masini . In primele doua s - au incarcat , in total , 45 q , iar in ultimele doua 3 500 kg . Stiind ca in cele trei masini s - au incarcat , in total , 6 t , aflati ce cantitate de marfa transporta fiecare .

Answer 1

a+b=4500kg;
b+c=3500kg;
a+b+c=6000kg;
⇒c=[a+b+c]-[a+b]
⇒c=6000kg-4500kg
⇒c=1500kg[cantitatea de marfa-a treia masina];
⇒b=[b+c]-c
⇒b=3500kg-1500kg
⇒b=2000kg[cantitatea de marfa-a doua masina];
⇒a=[a+b]-b
⇒a=4500kg-2000kg
⇒a=2500kg[cantitatea de marfa-prima masina];