Răspuns :
cele trei numere = a , b , c (daca vrei le poti nota cum vrei tu)
a + b + c = 778
b = a : 3 ==> a = b x 3
b = c - 18 ==> c = b + 18
--------------------
a . b . c = ?
b |---|
a |---|---|---| } 778
c |---|-+18-|
5 x b = 778 - 18
5 x b = 760
b = 760 : 5
b = 152
a = 152 x 3
a = 456
c = 152 + 18
c = 170
Verificare :
456 + 152 + 170 = 778
608 + 170 = 778
778 = 778
a + b + c = 778
b = a : 3 ==> a = b x 3
b = c - 18 ==> c = b + 18
--------------------
a . b . c = ?
b |---|
a |---|---|---| } 778
c |---|-+18-|
5 x b = 778 - 18
5 x b = 760
b = 760 : 5
b = 152
a = 152 x 3
a = 456
c = 152 + 18
c = 170
Verificare :
456 + 152 + 170 = 778
608 + 170 = 778
778 = 778
a /----/----/----/ Total 778
b /----/
c /----/+18
778-18=760
760:5=152
a=152*3=456
b=152
c=152+18=170
b /----/
c /----/+18
778-18=760
760:5=152
a=152*3=456
b=152
c=152+18=170