Question

Suma căror cinci nr. pare consecutive este 260?

Answer 1

x+x+2+x+4+x+6+x+8
5x=260
x=260:5
x=48
x=48 ( primul numar)
x=48+2=50 ( al II-lea numar)
x=50+2=52 ( al III_lea numar)
x=52+2=54 ( al IV-lea numar)
x=54+2=56 ( al V-lea numar)

Verificare:48+50+52+54+56=260