Răspuns :
a,b,c,d-nr.
a+b+c+d=106×7=742
a=954:9
a=106
b=a+209
b=106+209
b=315
c=b:3
c=315:3
c=105
106+315+105+d=742
526+d=742
d=742-526
d=216
a+b+c+d=106×7=742
a=954:9
a=106
b=a+209
b=106+209
b=315
c=b:3
c=315:3
c=105
106+315+105+d=742
526+d=742
d=742-526
d=216
Notez numerele cu a,, b, c si d
a + b + c + d = 106 x 7
a + b + c + d = 742
a = 954 : 9 = 106 → primul numar
b = 106 + 209 =315 → al doilea numar
c = 315 : 3 = 105 → al treilea numar
d = 742 - 106 - 315 - 105 = 216 → al patrulea numar
Verific: 106 + 315 + 105 + 216 = 742 → suma celor patru numere
Raspuns: 106, 315, 105, 216
a + b + c + d = 106 x 7
a + b + c + d = 742
a = 954 : 9 = 106 → primul numar
b = 106 + 209 =315 → al doilea numar
c = 315 : 3 = 105 → al treilea numar
d = 742 - 106 - 315 - 105 = 216 → al patrulea numar
Verific: 106 + 315 + 105 + 216 = 742 → suma celor patru numere
Raspuns: 106, 315, 105, 216