Question

suma a patru numere naturale consecutive este 166 . care sunt numerele?

Answer 1

numerele naturale consecutive au diferenta 1.
a+b+c+d=166
b=a+1
c=b+1=a+2
d=c+1=b+2=a+3
a+a+1+a+2+a+3=166
4a+6=166
4a=166-6
4a=160
a=160:4
a=40
b=40+1=41
c=41+1=42
d=42+1=43