mama------a
tata--------b
fiul-------c
Suma totala -----------S
Aflati suma fiului?
S - ( a + b ) = c
a + b = 2008.8
c = 2615.4 - 2008.8
c = 606.6
Aflati suma tatalui?
S - ( a + c ) = b
a + c = 1500.3
b = 2615.4 - 1500.3
b = 1115.1
Aflati suma mamei?
S - b - c = a
a = 2615.4 - 606.6 - 1115.1
a = 893.7