Question

Suma caror 5 numere consecutive este 260? +grafica
Coroana

Answer 1

50+51+52+53+54=101+105+54
                               =206+54
                               =260

Answer 2

x -           /............./
y=x+1    /............../+1
z=x+2    /............./+2
t=x+3    /............./+3
v=x+4   /.........../+4
x+y+z+t+v=260
5/......./+1+2+3+4=260
5/........../=260-10
5/.............../=250
/................/=250:5
/................./=50
x=50 ,  y=x+1=51 z=x+2=52;  t=x+3=53 , v=x+4=54

verificare
x+y+z+t+v=260
50+51+52+53+54=260
260=260
a doua varianta de rezolvare
x=primul nr 
 x+1=al 2-lea nr 
 x+2=al 3-lea nr
 x+3=al 4-lea nr 
 x+4=al 5-lea nr
x+(x+1)+(x+2)+(x+3)+(x+4)=260
  5x+10=260
 5x=260-10 
5x=250
x=50 ,  y=x+1=51 z=x+2=52;  t=x+3=53 , v=x+4=54