Question

Aflați 13 numere pare consecutive a caror medie este 48​

Answer 1

Notam cu "x" primul nr

x+x+2+x+4+x+6+x+8+x+10+x+12+x+14+x+16+x+18+x+20+x+22+x+24=48×13

13x+156=624

13x=624-156

13x=468

x=468:13

x=36

Raspuns : numerele sunt: 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60.