Question

Suma a patru numere consecutive este 629474.Care sunt numerele

Answer 1

Metoda grafica:
numerele consecutive au diferenta 1.
a+b+c+d=629474
b=a+1
c=b+1=a+2
d=c+1=b+2=a+3
a=? b=? c=? d=?
a I......I
b I.......I+1
c I.......I+2
d I.......I+3
1+2+3=6(suma partilor cunoscute)
629474-6=629468(patru partie egale)
629468:4=157367(a)
157367+1=157368(b)
157367+2=157369(c)
157367+3=157370(d)
Algebra:
numerele consecutive au diferenta 1.
a+b+c+d=629474
b=a+1
c=b+1=a+2
d=c+1=b+2=a+3
a=? b=? c=? d=?
a+a+1+a+2+a+3=629474
4a+6=629474
4a=629474-6
4a=629468
a=629468:4
a=157367
b=157367+1=157368
c=157367+2=157369
d=157367+3=157370
Sper ca te-am ajutat!