Răspuns :
a+b=660
a=3b
3b+b=660
4b=660
b=660:4
b=165
a=3*165
a=495
Verificare 495+165=660
Primul termen |---|---|---|
Al doilea termen |---|
Suma = 660
3 + 1 = 4 segmente egale
Al doilea termen = 660 : 4 = 165
Primul termen = 165 × 3 = 495
495 + 165 = 660
Al doilea termen |---|
Suma = 660
3 + 1 = 4 segmente egale
Al doilea termen = 660 : 4 = 165
Primul termen = 165 × 3 = 495
495 + 165 = 660