Question

Suma a trei nr. naturale consecutive este 24. Aflati nr.

Answer 1

numerele naturale consecutive au diferenta 1
a+b+c=24
b=a+1
c=b+1=a+2
a+a+1+a+2=24
3a+3=24
3a=24-3
3a=21
a=21:3
a=7
b=7+1=8
c=8+1=9