Question

Daca te-ai antrenat,îți propun si alt sir :25,30,35,40,.......y
Identifica numarul care se afla pe locul500
(((dau coronita)))

Answer 1

25; 30; 35; 40; ...y

Termen 1 = 25 = 5 × 1 + 20
Termen 2 = 30 = 5 × 2 + 20
Termen 3 = 35 = 5 × 3 + 20
Termen 4 = 40 = 5 × 4 + 20
........
Termen y = 5 × y + 20
Termen 500 = 5 × 500 + 20 = 2500+20 = 2 520