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dau coroana suma căror cinci numere consecutive este 260??urgentttttt

Răspuns :

a,b,c,d,e sunt cele 5 numere cosecitive
b=a+1
c=b+1=a+2
d=c+1=a+3
e=d+1=a+4
=>a+b+c+d+e=a+a+1+a+2+a+3+a+4=
=5a+10=260
=>5a=260-10=250
=>a=250:5=50
b=50+1=51
c=51+1=52
d=52+1=53
e=53+1=54

Verificare:
50+51+52+53+54=260