Question

Determinați numerele naturale pare consecutive a,b, c, d, stiind ca: a+b+c+d+45+46+47+48+49+50=305​

Answer 1

Răspuns:

A+b+c+d+285=305

A+b+c+d=305-285

A+b+c+d=20

B=a+2

C=b+2=a+4

D=c+2=a+6

A+a+2+a+4+a+6=20

4a+12=20

4a=20-12

4a=8

a=8:2

a=4

Numerele sunt: 4, 6, 8 si 10.