Question

3 lazi cu cirese cantaresc impreuna 48 kg. Primele 2 cantaresc 32 kg,iar ultimele doua 31 kg. Cate kg cantareste fiecare lada in parte?

Answer 1

a+b+c=48
a+b=32 =>c=48-32=16 kg
b+c=31 =>a=48-31=17 kg
17+b+16=48
33+b=48
b=48-33 =>b=15 kg

Answer 2

I+II+III=48
I+II=32
II+III=31
!.Cat cantareste a treia lada?
48-32=16
2.Dar prima lada?
48-31=17
3.Dar a doua lada?
32-17=15
PROBA 15+17+16=48