Răspuns :
ce cantitate de faina a ramas?
primul sac=28 kg
al doilea=28:2=14 k
gal treilea=28x2=56
653-(28+14+56)=555
s-a luat
555:3=185
ce cantitate a fost?
primul sac=185+28=213kg
al doilea=185+14=199kg
al treilea=185+56=241kg
primul sac=28 kg
al doilea=28:2=14 k
gal treilea=28x2=56
653-(28+14+56)=555
s-a luat
555:3=185
ce cantitate a fost?
primul sac=185+28=213kg
al doilea=185+14=199kg
al treilea=185+56=241kg
a+b+c=653
a-n=28
b-n=28:2=14
c-n=28x2=56
a=28+n
b=14+n
c=56+n
28+n+14+n+56+n=653
3n+98=653
3n=653-98
n=555:3
n=185
a=28+185=213
b=14+185=199
c=56+185=241
a-n=28
b-n=28:2=14
c-n=28x2=56
a=28+n
b=14+n
c=56+n
28+n+14+n+56+n=653
3n+98=653
3n=653-98
n=555:3
n=185
a=28+185=213
b=14+185=199
c=56+185=241