Răspuns :
a+b+c=300
a=b+20
c=3xb
b+20+b+3xb=300
5b=300-20
5b =280
b=56
a=56+20=76
c=168
a=b+20
c=3xb
b+20+b+3xb=300
5b=300-20
5b =280
b=56
a=56+20=76
c=168
a.I____I
b.I____I+20
c.I____I+20I____I+20I____I+20
Suma este 300 . Aflam suma partilor egale :
300-80=220
220:5=44 ( a )
44+20=64 ( b )
44x3+60=192 ( c )
Verificare : 44+64+192=300
b.I____I+20
c.I____I+20I____I+20I____I+20
Suma este 300 . Aflam suma partilor egale :
300-80=220
220:5=44 ( a )
44+20=64 ( b )
44x3+60=192 ( c )
Verificare : 44+64+192=300